Air medical services are the use of aircraft, including both fixed-wing aircraft and helicopters to provide various kinds of urgent medical care, especially prehospital, emergency and critical care to patients during aeromedical evacuation and rescue operations.
120-965: Life Flight or LifeFlight often refers to air ambulance services. Life Flight may also refer to: Air ambulance During World War I , air transport was used to provide medical evacuation – either from frontline areas or the battlefield itself. In 1928, in Australia, John Flynn founded the Flying Doctor Service (later the Royal Flying Doctor Service), to provide a wide range of medical services to civilians in remote areas; these included from routine consultations with travelling general practitioners , to air ambulance evacuations and other emergency medical services . Fixed wing military air ambulances came into regular use during World War II. Helicopters became more commonly used for such purposes during
240-508: A lightbar or in special flush-mount designs (as seen on the Danish ambulance to the right), or may be hidden in a host light (such as a headlamp ) by drilling a hole in the host light's reflector and inserting the emergency light. These hidden lights may not be apparent until they are activated. Additionally, some of the standard lights fitted to an ambulance (e.g. headlamps , tail lamps) may be programmed to flash. Flashing headlights (typically
360-409: A type of cake ), chevrons (arrowheads – often pointed towards the front of the vehicle if on the side, or pointing vertically upwards on the rear) or stripes along the side (these were the first type of retro-reflective device introduced, as the original reflective material, invented by 3M , only came in tape form). In addition to retro-reflective markings, some services now have the vehicles painted in
480-489: A bright (sometimes fluorescent ) yellow or orange for maximum visual impact, though classic white or red are also common. Fire department-operated ambulances are often painted red to match the fire apparatuses. Another passive marking form is the word ambulance (or local language variant) spelled out in reverse on the front of the vehicle. This enables drivers of other vehicles to more easily identify an approaching ambulance in their rear view mirrors . Ambulances may display
600-462: A business enterprise, or funded by public donations. It may also be reasonable to differentiate between dedicated aircraft and those with multiple purposes and roles. Finally, it is reasonable to differentiate by the type of aircraft used, including rotary-wing , fixed-wing , or very large aircraft. The military role in civilian air ambulance operations is described in the History section. Each of
720-468: A combination of these roles. In almost all cases, the government provides guidelines to hospitals and EMS systems to control operating costs—and may specify operating procedures in some level of detail to limit potential liability. However, the government almost always takes a 'hands-off' approach to the actual running of the system, relying instead on local managers with subject matter (physicians and aviation executives) expertise. Ontario's ORNGE program and
840-692: A consideration in some contexts, in the United States, the primary measure of effectiveness is patient outcomes. Improvements in ground ambulance prehospital care have created uncertainty as to whether helicopter emergency medical services transport is associated with better patient outcomes compared with ground transportation. A U.S. study using 2014 data found that after adjusting for age, Injury Severity Score, and gender, trauma patients who were transferred by helicopter were 57.0% less likely to die than those transferred by ground ambulance (95% CI 0.41 to 0.44, p<0.0001). A retrospective review study reached
960-455: A design based on vans or pickup trucks , though others take the form of motorcycles , buses , hearses , aircraft and boats . Ambulances are generally considered emergency vehicles authorized to be equipped with emergency lights and sirens . Generally, vehicles count as an ambulance if they can transport patients. However, it varies by jurisdiction as to whether a non-emergency patient transport vehicle (also called an ambulette )
1080-704: A fully qualified doctor on board. Most ambulance services require at least two crew members to be on every ambulance (one to drive, and one to attend the patient). It may be the case that only the attendant need be qualified, and the driver might have no medical training. In some locations, an advanced life support ambulance may be crewed by one paramedic and one technician, or in countries like Australia advanced life support registered paramedics. Common ambulance crew qualifications are: Military ambulances have historically included vehicles based on civilian designs and at times also included armored, but unarmed, vehicle ambulances based upon armoured personnel carriers (APCs). In
1200-606: A gasoline engine in order to meet emissions requirements. In the United Kingdom, the National Health Service has set a target for all ambulances to be fully electric as part of the Net Zero campaign by 2045. Many regions have prescribed standards which ambulances should, or must, meet in order to be used for their role. These standards may have different levels which reflect the type of patient which
1320-622: A great deal of experience in piloting their aircraft because the conditions of air ambulance flights are often more challenging than regular non-emergency flight services. After a spike in air ambulance crashes in the United States in the 1990s, the U.S. government and the Commission on Air Medical Transportation Systems ( CAMTS ) stepped up the accreditation and air ambulance flight requirements, ensuring that all pilots, personnel, and aircraft meet much higher standards than previously required. The resulting CAMTS accreditation, which applies only in
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#17327866309391440-684: A higher level of care at the scene of a trauma and faster transport to a trauma center. They can also provide critical care when transporting patients from community hospitals to trauma centers. Air ambulance transport is expensive, and if utilised poorly is therefore not cost effective. When inappropriately deployed to a patient close to a hospital, an air ambulance may add delay to the patient reaching hospital. In research from 1996, air ambulance services in England and Wales demonstrated no evidence of improvement in vehicle response times (i.e. time from 999 call to an ambulance vehicle being on-scene with
1560-429: A left -> right pattern for use when the ambulance is parked on the left hand side of the road, indicating to other road users that they should move to the right (away from the ambulance)). Incandescent and LED lights may also be programmed to burn steadily, without flashing, which is required in some provinces. Emergency lights may simply be mounted directly on the body, or may be housed in special fittings, such as in
1680-966: A local business or even a multi-national company may choose to fund local air ambulance service as a goodwill or public relations gesture. Examples of this are common in the European Union , where in London the Virgin Corporation previously donated to the Helicopter Emergency Medical Service, and in Germany and the Netherlands a large number of the 'Christoph' air ambulance operations are actually funded by ADAC , Germany's largest automobile club and DRF Luftrettung. In Australia and New Zealand , many air ambulance helicopter operations are sponsored by
1800-421: A non-medically equipped and staffed aircraft simply transports patients without care in flight. Military organizations and NATO refer to the former as medical evacuation (MEDEVAC) and to the latter as casualty evacuation (CASEVAC) . Air Traffic Control (ATC) grants special treatment to air ambulance operations, much like a ground ambulance using lights and a siren, only when they are actively operating with
1920-433: A not-for-profit mutual insurance company, specifies the circumstances in which costs for air medical services are covered. The medical personnel of a helicopter ambulance has historically been a Physician/Nurse combination, Paramedic/Nurse, or a Nurse/Nurse combination. The need for a Physician/Nurse combination has diminished with more protocol and evidence-based applications for care by nurses and other clinicians and so
2040-554: A number of its Merkava main battle tanks with ambulance features in order to allow rescue operations to take place under heavy fire in urban warfare . The modifications were made following a failed rescue attempt in which Palestinian gunmen killed two soldiers who were providing aid for a Palestinian woman in Rafah . Since M-113 armored personnel carriers and regular up-armored ambulances are not sufficiently protected against anti-tank weapons and improvised explosive devices , it
2160-575: A paramedic provided from whichever fire department rescue unit has responded. Sometimes the air ambulance may be run as a dual concern with another governmental body - for example, the Wiltshire Air Ambulance was run as a joint Ambulance Service and police unit until 2014. In other cases, the paramedic staffs the aircraft full-time, but has a dual function. In the case of the Maryland State Police, for example,
2280-430: A patient. When this happens, air ambulance aircraft take the call sign MEDEVAC (formerly LIFEGUARD) and receive priority handling in the air and on the ground. As with many Emergency Medical Service (EMS) innovations, treating patients in flight originated in the military. The concept of using aircraft as ambulances is almost as old as powered flight itself. Although balloons were not used to evacuate wounded soldiers at
2400-460: A per-accident basis, ambulance collisions tend to involve more people, and result in more injuries. An 11-year retrospective study concluded in 2001 found that although most fatal ambulance crashes in the United States occurred during emergency runs, they typically occurred on improved, straight, dry roads, during clear weather. Furthermore, paramedics are also at risk in ambulances while helping patients, as 27 paramedics died during ambulance trips in
2520-644: A red traffic light or stop sign as a yield sign ('give way'), or be permitted to break the speed limit. Generally, the priority of the response to the call will be assigned by the dispatcher, but the priority of the return will be decided by the ambulance crew based on the severity of the patient's illness or injury. Patients in significant danger to life and limb (as determined by triage ) require urgent treatment by advanced medical personnel, and because of this need, emergency ambulances are often fitted with passive and active visual and/or audible warnings to alert road users. Passive visual warnings are usually part of
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#17327866309392640-418: A result, medics and other medical personnel attached to military ambulances are usually put through basic military training , on the assumption that they may have to use a weapon. The laws of war do allow non-combatant military personnel to carry individual weapons for protecting themselves and casualties. However, not all militaries exercise this right to their personnel. The Israeli Defense Forces modified
2760-520: A similar conclusion: "Patients transported by helicopter to an urban trauma centre ... had improved survival than those arriving by other means of transport." Patient survival is not the only possible measure of patient outcome. In the case of stroke patients, for instance, various outcome measures could be used. There are many considerations in determining whether to dispatch air medical services. Availability, distance and flight conditions are primary considerations. Even when available, an air ambulance
2880-525: A single rotor-wing aircraft based in Toronto. An important difference in the Ontario program involved the emphasis of service. "On scene" calls were taken, although less commonly, and a great deal of the initial emphasis of the program was on the interfacility transfer of critical care patients. Operating today through a private contractor ( ORNGE ), the system operates 33 aircraft stationed at 26 bases across
3000-892: A standing air ambulance system, as did Siam (Thailand). In 1928 the first formal, full-time air ambulance service was established in the Australian outback . This organization became the Royal Flying Doctor Service and still operates. In 1934, Marie Marvingt established Africa's first civil air ambulance service, in Morocco. In 1936, air ambulance services were established as part of the Highlands and Islands Medical Service to serve more remote areas of Highland Scotland . Air ambulances quickly established their usefulness in remote locations, but their role in developed areas developed more slowly. After World War II ,
3120-550: A stopped ambulance in a dangerous position on the road. Common colours for ambulance warning beacons are blue, red, amber, and white (clear). However the colours may vary by country and sometimes by operator. There are several technologies in use to achieve the flashing effect. These include flashing a light bulb or LED , flashing or rotating halogen , and strobe lights , which are usually brighter than incandescent lights. Each of these can be programmed to flash singly or in groups, and can be programmed to flash in patterns (such as
3240-827: A typical paramedic, so medical control permits them to exercise more medical decision-making latitude. Assessment skills tend to be considerably higher, and, particularly on inter-facility transfers, permit the inclusion of functions such as reading x-rays and interpretation of lab results. This allows for planning, consultation with supervising physicians, and issuing contingency orders in case they are required during flight. Some systems operate almost entirely off-line, using protocols for almost all procedures and only resorting to on-line medical control when protocols have been exhausted. Some air ambulance operations have full-time, on-site medical directors with pertinent backgrounds (e.g., emergency medicine); others have medical directors who are only available by pager. For those systems operating on
3360-422: A wider coverage area than a land ambulance. This makes them particularly useful in sparsely-populated rural areas. Air medical services have a particular advantage for major trauma injuries. The controversial theory of the golden hour suggests that major trauma patients should be transported as quickly as possible to a specialist trauma center . Therefore, medical responders in a helicopter can provide both
3480-533: Is a major factor in their effective use. When an ambulance is retired, it may be donated or sold to another EMS provider. Alternately, it may be adapted into a storage and transport vehicle for crime scene identification equipment, a command post at community events, or support vehicle, such as a logistics unit. Others are refurbished and resold, or may just have their emergency equipment removed to be sold to private businesses or individuals, who then can use them as small recreational vehicles . They may also have
3600-725: Is a reference to early medical care where patients were moved by lifting or wheeling. The word originally meant a moving hospital, which follows an army in its movements. Ambulances ( ambulancias in Spanish) were first used for emergency transport in 1487 by the Spanish forces during the siege of Málaga by the Catholic Monarchs against the Emirate of Granada. During the American Civil War vehicles for conveying
3720-410: Is a specially outfitted helicopter or fixed-wing aircraft that transports injured or sick people in a medical emergency or over distances or terrain impractical for a conventional ground ambulance . Fixed-wing aircraft are also more often used to move patients over long distances and for repatriation from foreign countries. These and related operations are called aeromedical . In some circumstances,
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3840-693: Is a van chassis-cab with a custom-made rear compartment, used for ALS and rescue. Type IV is for ad hoc patient transfer using smaller utility vehicles selected for maneuverability in special environments such as dense crowds at events; these are uncommon and are not subject to federal regulations in the United States. The move towards standardisation is now reaching countries without a history of prescriptive codes, such as India, which approved its first national standard for ambulance construction in 2013. Ambulances, like other emergency vehicles , are required to operate in most weather conditions, including those during which civilian drivers often elect to stay off
3960-425: Is an increasing trend as state health services agencies address the issues surrounding the safety of emergency medical services flights . Some examples are the states of Colorado, New Jersey, New Mexico, Utah, and Washington. According to the rationale used to justify the state of Washington's adoption of the accreditation requirements, requiring accreditation of air ambulance services provides assurance that
4080-530: Is based on a heavy truck chassis-cab with a custom rear compartment that is often referred to as a "box" or "module", primarily used for Advanced Life Support (ALS) or Mobile Intensive Care Unit (MICU), as well as rescue work. Type II is based on a commercial heavy-duty van with few modifications except for a raised roof and a secondary air conditioning unit for the rear of the vehicle, primarily used for Basic Life Support (BLS) and transfer of patients, though they are occasionally also used for ALS and rescue. Type III
4200-488: Is counted as an ambulance. These vehicles are not usually (although there are exceptions) equipped with life-support equipment, and are usually crewed by staff with fewer qualifications than the crew of emergency ambulances. Conversely, EMS agencies may also have nontransporting EMS vehicles that cannot transport patients. The term ambulance comes from the Latin word ambulare as meaning 'to walk or move about' which
4320-458: Is not always the faster choice in comparison to ground ambulances. Ground ambulances are more numerous and more ubiquitous, so will often be closer to the scene. Ground ambulances can depart their base almost immediately, while air medical services must complete preflight routines prior to departure. A nearby suitable landing site may not be available due to trees, wires, etc. Air medical services tend to have an advantage where ground access routes to
4440-499: Is one pilot and two medical crew is: "3 to go, 1 to say 'NO'". If one flight member is not comfortable with the flight for whatever reason, the flight is cancelled. Some have questioned the safety of air medical services. While the number of crashes may be increasing, the number of programs and use of services has also increased. Factors associated with fatal crashes of medical transport helicopters include flying at night and during bad weather, and postcrash fires. An air ambulance
4560-551: Is put on to the empty chassis of the ambulance, and then finished off. Modern ambulances are typically powered by internal combustion engines , which can be powered by any conventional fuel, including diesel , gasoline or liquefied petroleum gas , depending on the preference of the operator and the availability of different options. Colder regions often use gasoline-powered engines, as diesels can be difficult to start when they are cold. Warmer regions may favor diesel engines, as they are more efficient and more durable. Diesel power
4680-533: Is similar to the KKK-A-1822F and NFPA 1917–2019 specifications. The decision on which of the current (3) standards to require is left up to each individual state legislature or EMS director. Some states have no specific requirement, while others specify which standard is acceptable. Others, yet, allow the end user to decide which standard to comply to. In the United States and Canada, there are four types of ambulances: Type I, Type II, Type III, and Type IV. Type I
4800-482: Is sometimes better to wait for air medical services with a specialized team to transport a patient even though a local land ambulance and an ad hoc local medical team may be able to transfer a patient from a remote hospital to definitive care faster than air ambulance. In the United States, insurance coverage may be a factor. For example, the Coverage Policy Manual for Arkansas Blue Cross BlueShield,
4920-468: Is sometimes chosen due to safety concerns, after a series of fires involving gasoline-powered ambulances during the 1980s. These fires were ultimately attributed in part to gasoline's higher volatility in comparison to diesel fuel. The type of engine may be determined by the manufacturer: in the past two decades, Ford would only sell vehicles for ambulance conversion if they are diesel-powered. Beginning in 2010, Ford will sell its ambulance chassis with
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5040-402: Is the single most important factor to be considered when deciding whether to transport a patient by helicopter. Weather, air traffic patterns, and distances (such as from the trauma scene to closest level 1 trauma centre) must also be considered. Another reason for cancelling a flight is based on the comfort of the flight crew with the flight. The general rule of safety is upon the crew, when there
5160-412: Is unable to alert pedestrians, those not using a compatible radio or even have it turned off. In the United States, the cost of an ambulance ride may be paid for from several sources, and this will depend on the local situation type of service being provided, by whom, and to whom. There are differing levels of qualification that the ambulance crew may hold, from holding no formal qualification to having
5280-576: Is usually sufficient. Since laws of war demand ambulances be marked with one of the Emblems of the Red Cross not to mount offensive weapons , military ambulances are often unarmed. It is a generally accepted practice in most countries to classify the personnel attached to military vehicles marked as ambulances as non-combatants ; however, this does not always exempt medical personnel from coming under fire – accidental or deliberate. As
5400-470: The Korean and Vietnam wars. Later, helicopters were introduced to civilian health care, especially for shorter distances, in and around large cities: transporting paramedics or specialist doctors as needed and transporting patients to hospitals, especially for major trauma cases. Fixed-wing aircraft remained in use for long-distance medical transport. Air medical services can travel faster and operate in
5520-552: The Learjet 35 and 36 , Learjet 31 , King Air 90 , King Air 200 , Pilatus PC-12 & PC-24 , and Piper Cheyenne . Due to the configuration of the medical crew and patient compartments, these aircraft are normally configured to only transport one patient but some can be configured to transport two patients if so needed. Additionally, helicopters have stricter weather minimums that they can operate in and commonly do not fly at altitudes over 10,000 feet above sea level. Beginning in
5640-538: The Order of St John , the Order of Malta Ambulance Corps and Malteser International often use the Maltese cross to identify their ambulances. This is especially important in countries such as Australia, where St. John Ambulance operate one state and one territory ambulance service, and all of Australia's other ambulance services use variations on a red Maltese cross. Fire service operated ambulances may display
5760-603: The Second World War vehicles such as the Hanomag Sd Kfz 251 half-track were pressed into service as ad hoc ambulances , and in more recent times purpose-built AFVs such as the U.S. M1133 medical evacuation vehicle serve the exclusive purpose of armored medical vehicles. Civilian based designs may be painted in appropriate colors, depending on the operational requirements (i.e. camouflage for field use, white for United Nations peacekeeping , etc.). For example,
5880-598: The Second World War . The first use of medevac with helicopters was the evacuation of three British pilot combat casualties by a US Army Sikorsky R-4 in Burma during WW2 , and the first dedicated use of helicopters by U.S. forces occurred during the Korean War , between 1950 and 1953. The French used light helicopters in the First Indochina War . While popularly depicted as simply removing casualties from
6000-744: The Siege of Paris in 1870, air evacuation was experimented with during the First World War . The first recorded British ambulance flight took place in 1917 in Ottoman Empire when a soldier in the Camel Corps who had been shot in the ankle was flown to hospital in a de Havilland DH9 in 45 minutes. First Recorded Aeromedical Evacuation in the British Army The same journey by land would have taken some 3 days to complete. In
6120-944: The United States Air Force , the German Luftwaffe , and the British Royal Air Force . The Swedish National Air Medevac - SNAM is an exception to the military only rule where the system is owned by the Swedish Civil Contingencies Agency Myndigheten för samhällsskydd och beredskap and the 737-800 aircraft is provided under contract when so required by Scandinavian Airlines. Each operates aircraft staffed by physicians, nurses, and corpsmen/technicians, and each can provide long-distance transport with full medical support to dozens of patients simultaneously. However, in recent years, exceptions to
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#17327866309396240-951: The United States military currently employs the M113, the M577 , the M1133 Stryker medical evacuation vehicle (MEV), and the RG-33 heavily armored ground ambulance (HAGA) as treatment and evacuation vehicles, with contracts to incorporate the newly designed M2A0 armored medical evacuation vehicle (AMEV), a variant of the M2 Bradley fighting vehicle (formerly known as the ATTV). Some navies operate ocean-going hospital ships to lend medical assistance in high casualty situations such as wars or natural disasters. These hospital ships fulfill
6360-652: The Westpac Bank . In these cases, the operation may vary but is the result of a carefully negotiated agreement between government, EMS, hospitals, and the donor. In most cases, while the sponsor receives advertising exposure in exchange for funding, they take a 'hands-off' approach to daily operations, relying instead on subject matter specialists. In some cases, air ambulance services may be provided by means of voluntary charitable fundraising, as opposed to government funding, or they may receive limited government subsidy to supplement local donations. Some countries, such as
6480-520: The "military-only" rule have grown with the need to quickly transport patients to facilities that provide higher levels of care or to repatriate individuals. Air medical companies use both large and small fixed-wing aircraft configured to provide levels of care that can be found in Trauma centres for individuals who subscribe to their own health insurance or affiliated travel insurance and protection plans. In most jurisdictions, air ambulance pilots must have
6600-462: The 1920s several services, both official and unofficial, started up in various parts of the world. Aircraft were still primitive at the time, with limited capabilities, and the effort received mixed reviews. Exploration of the idea continued, however, and France and the United Kingdom used fully organized air ambulance services during the African and Middle Eastern Colonial Wars of the 1920s. In 1920,
6720-399: The 1990s, the number of air ambulance crashes in the United States, mostly involving helicopters, began to climb. By 2005, this number had reached a record high. Crash rates from 2000 to 2005 more than doubled the previous five year's rates. To some extent, these numbers had been deemed acceptable, as it was understood that the very nature of air ambulance operations meant that, because a life
6840-535: The British Royal Army Medical Corps has a fleet of white ambulances, based on production trucks. Military helicopters have also served both as ad hoc and purpose-built air ambulances since they are extremely useful for MEDEVAC . In terms of equipment, military ambulances are barebones, often being nothing more than a box on wheels with racks to place manual stretchers, though for the operational conditions and level of care involved this
6960-661: The British, while suppressing the " Mad Mullah " in Somaliland , used an Airco DH.9A fitted out as an air ambulance. It carried a single stretcher under a fairing behind the pilot. The French evacuated over 7,000 casualties during that period. By 1936, an organized military air ambulance service evacuated wounded from the Spanish Civil War for medical treatment in Nazi Germany ; this service continued during
7080-456: The CQC together ensuring fundraising, air and clinical operations are in line with national regulation and best practice. The code goes further with an expectation of mutual support and working within its policy and best practice guides. The nature of the air operation frequently determines the type of medical control required. In most cases, an air ambulance staffer is considerably more skilled than
7200-452: The Cross of St. Florian (often incorrectly called a Maltese cross) as this cross is frequently used as a fire department logo (St. Florian being the patron saint of firefighters ). The active visual warnings are usually in the form of flashing lights. These flash in order to attract the attention of other road users as the ambulance approaches, or to provide warning to motorists approaching
7320-466: The European Union, almost all air ambulance service is on a fee-for-service basis, except for systems that operate by private subscription. Many jurisdictions have a mix of operation types. Fee-for-service operators are generally responsible for their own organization but may have to meet government licensing requirements. Rega of Switzerland is an example of such a service. In some cases,
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#17327866309397440-569: The Franco-German model, the physician is almost always physically present, and medical control is not an issue. Most aircraft used as air ambulances, with the exception of charter aircraft and some military aircraft, are equipped for advanced life support and have interiors that reflect this. The challenges in most air ambulance operations, particularly those involving helicopters, are the high ambient noise levels and limited amounts of working space, both of which create significant issues for
7560-643: The German system in 1983 when Christophorus 1 entered service at Innsbruck. Also in the year 1975 Hans Burghart, one of the inventor of the civilian air rescue in Germany, presented at one Academic conference in the US the concept "Rescue Helicopters in Primary and Secondary Missions" which had impact for the aviation training at Fort Rucker , Alabama . The first civilian, hospital-based medical helicopter program in
7680-494: The John S. Dunn Helistop, one of the busiest helipads in the world, with space for four helicopters. A final area of distinction is the operation of large, generally fixed-wing air ambulances. In the past, the infrequency of civilian demand for such a service confined such operations to the military, which requires them to support overseas combat operations. Military organizations capable of this type of specialized operation include
7800-858: The Polish Lotnicze Pogotowie Ratunkowe (LPR) are examples of this type of operating system. The Polish LPR is a national system covering the entire country and funded by the government through the Ministry of Health but run independently, there is no independent HEMS operator in Poland . In North East Ohio, including Cleveland , the Cuyahoga County -owned MetroHealth Medical Center uses its Metro Life Flight to transport patients to Metro's level I trauma and burn unit. There are 5 helicopters for North East Ohio and, in addition, Metro Life Flight has one fixed-wing aircraft. In
7920-504: The Red Cross member organization use a red Star of David , but this does not have recognition beyond Israeli borders, where they must use the Red Crystal. The Star of Life is widely used, and was originally designed and governed by the U.S. National Highway Traffic Safety Administration , because the Red Cross symbol is legally protected by both National and international law. Ambulance services with historical origins such as
8040-780: The Saskatchewan government in Regina, Saskatchewan, Canada, established the first civilian air ambulance in North America. The Saskatchewan government had to consider remote communities and great distances in providing health care to its citizens. The Saskatchewan Air Ambulance service continues to be active as of 2023. J. Walter Schaefer founded the first air ambulance service in the U.S., in 1947, in Los Angeles. The Schaefer Air Service operated as part of Schaefer Ambulance Service . Two research programs were implemented in
8160-756: The Spanish, and civilian variants were put into operation during the 1830s. Advances in technology throughout the 19th and 20th centuries led to modern self-powered ambulances. Ambulances can be grouped into types depending on whether or not they transport patients, and under what conditions. In some cases, ambulances may fulfill more than one function (such as combining emergency ambulance care with patient transport: Ambulances can be based on many types of vehicle although emergency and disaster conditions may lead to other vehicles serving as makeshift ambulances: Ambulance design must take into account local conditions and infrastructure. Maintained roads are necessary for road-going ambulances to arrive on scene and then transport
8280-559: The U.K., use a mix of such systems. In Scotland, the parliament has voted to fund air ambulance service directly, through the Scottish Ambulance Service. In England and Wales, however, the service is funded on a charitable basis via a number of local charities for each region covered. Great strides have been made in the UK, with the 'Association of Air Ambulance (AAA)'. This organization is widely credited for having created
8400-474: The U.S. to assess the impact of medical helicopters on mortality and morbidity in the civilian arena. Project CARESOM was established in Mississippi in 1969. Three helicopters were purchased through a federal grant and located strategically in the north, central, and southern areas of the state. Upon termination of the grant, the program was considered a success and each of the three communities were given
8520-706: The US between 1991 and 2006. In addition to the equipment directly used for the treatment of patients, ambulances may be fitted with a range of additional equipment which is used in order to facilitate patient care. This could include: In parts of the world that lack a high level of infrastructure, ambulances are designed to meet local conditions, being built using intermediate technology . Ambulances can also be trailers, which are pulled by bicycles, motorcycles, tractors, or animals. Animal-powered ambulances can be particularly useful in regions that are subject to flooding. Motorcycles fitted with sidecars (or motorcycle ambulances ) are also used, though they are subject to some of
8640-540: The United Kingdom, the Scottish Ambulance Service operates two helicopters and two fixed-wing aircraft twenty-four hours per day. In some jurisdictions, cost is a major consideration, and the presence of dedicated air ambulances is simply not practical. In these cases, the aircraft may be operated by another government or quasi-government agency and made available to EMS for air ambulance service when required. In southern New South Wales, Australia,
8760-540: The United States began operation in 1972. Flight For Life Colorado began with a single Alouette III helicopter, based at St. Anthony Central Hospital in Denver, Colorado. In Ontario, Canada, the air ambulance program began in 1977, and featured a paramedic-based system of care, with the presence of physicians or nurses being relatively unusual. The system, operated by the Ontario Ministry of Health, began with
8880-517: The United States, includes the requirement for an air ambulance company to own and operate its own aircraft. Some air ambulance companies, realizing it is virtually impossible to have the correct medicalized aircraft for every mission, instead charter aircraft based on the mission-specific requirements. While in principle CAMTS accreditation is voluntary, a number of government jurisdictions require companies providing medical transportation services to have CAMTS accreditation to be licensed to operate. This
9000-676: The United States, standards for ambulance design have existed since 1976, where the standard is published by the General Services Administration and known as KKK-A-1822. This standard has been revised several times, and is currently in version 'F' change notice #13, known as KKK-A-1822F. The National Fire Protection Association has also published a design standard, NFPA 1917 , which offers an alternative to KKK-A-1822F. The Commission on Accreditation of Ambulance Services (CAAS) has published its Ground Vehicle Standard for Ambulances v2.0, effective July 2019. This standard
9120-555: The ambulance is expected to transport (for instance specifying a different standard for routine patient transport than high dependency), or may base standards on the size of vehicle. For instance, in Europe, the European Committee for Standardization publishes the standard CEN 1789 , which specifies minimum compliance levels across the build of ambulance, including crash resistance, equipment levels, and exterior marking. In
9240-494: The ambulance that may interfere with patient care and radio communications. Ambulances can additionally be fitted with airhorn audible warnings to augment the effectiveness of the siren system, or may be fitted with extremely loud two-tone air horns as their primary siren. A recent development is the use of the RDS system of car radios . The ambulance is fitted with a short range FM transmitter, set to RDS code 31, which interrupts
9360-487: The appropriate hospital of the ambulance's pending arrival, or, in cases where physicians do not form part of the ambulance's crew, to confer with a physician for medical oversight. Ambulances often have two stages of manufacturing. The first is frequently the manufacture of light or medium truck chassis-cabs or full-size vans (or in some places, cars) such as Mercedes-Benz , Nissan , Toyota , or Ford . The second manufacturer (known as second stage manufacturer ) modifies
9480-634: The battlefield (which they did), helicopters in the Korean War also moved critical patients to hospital ships after initial emergency treatment in field hospitals. Knowledge and expertise of use of air ambulances evolved parallel to the aircraft themselves. By 1969, in Vietnam , the use of specially trained medical corpsmen and helicopter air ambulances led U.S. researchers to determine that servicemen wounded in battle had better rates of survival than motorists injured on California freeways. This inspired
9600-497: The criteria of an ambulance (transporting the sick or injured), although the capabilities of a hospital ship are more on par with a Mobile Army Surgical Hospital . In line with the laws of war , these ships can display a prominent Red Cross or Red Crescent to confer protection under the appropriate Geneva Convention . However, this designation has not always protected hospital ships from enemy fire. Ambulettes provide patient transport service for non-emergency situations. Scheduling
9720-559: The design becomes more important, as does the nature of the skills required to properly operate the vehicle. Cost-effectiveness can be a high priority. Emergency ambulances are highly likely to be involved in hazardous situations, including incidents such as a road traffic collision , as these emergencies create people who are likely to be in need of treatment. They are required to gain access to patients as quickly as possible, and in many countries, are given dispensation from obeying certain traffic laws. For instance, they may be able to treat
9840-416: The design of the vehicle, and involve the use of high contrast patterns. Older ambulances (and those in developing countries ) are more likely to have their pattern painted on, whereas modern ambulances generally carry retro-reflective designs, which reflects light from car headlights or torches. Popular patterns include 'checker board' (alternate coloured squares, sometimes called ' Battenburg ', named after
9960-726: The evolving Emergency Medical Services. As the concept was proven, dedicated civilian air ambulances began to appear. On November 1, 1970, the first permanent civil air ambulance helicopter, Christoph 1 , entered service at the Hospital of Harlaching , Munich, Germany. The apparent success of Christoph 1 led to a quick expansion of the concept across Germany, with Christoph 10 entering service in 1975, Christoph 20 in 1981, and Christoph 51 in 1989. As of 2007, there are about 80 helicopters named after Saint Christopher , like Christoph Europa 5 (also serving Denmark), Christoph Brandenburg or Christoph Murnau am Staffelsee . Austria adopted
10080-498: The feasibility of using military helicopters to augment existing civilian emergency medical services. These programs were highly successful at establishing the need for such services. The remaining challenge was in how such services could be operated most cost-effectively. In many cases, as agencies, branches, and departments of the civilian governments began to operate aircraft for other purposes, these aircraft were frequently pressed into service to provide cost-effective air support to
10200-499: The first experiments with the use of civilian paramedics in the world. The US military recently employed UH-60 Black Hawk helicopters to provide air ambulance service during the Iraq War to military personnel and civilians. The use of military aircraft as battlefield ambulances continues to grow and develop today in a variety of countries, as does the use of fixed-wing aircraft for long-distance travel, including repatriation of
10320-621: The flight paramedic is a serving State Trooper whose job is to act as the Observer Officer on a police helicopter when not required for medical emergencies. In many cases, local jurisdictions do not charge for air ambulance service, particularly for emergency calls. However, the cost of providing air ambulance services is considerable and many, including government-run operations, charge for service. Organizations such as service aircraft charter companies, hospitals, and some private-for-profit EMS systems generally charge for service. Within
10440-467: The front are often fitted as well to increase visibility for the driver. In order to increase safety, it is best practice to have 360° coverage with the active warnings, improving the chance of the vehicle being seen from all sides. In some countries, such as the United States, this may be mandatory. The roof, front grille, sides and rear of the body, and front fenders are common places to mount emergency lights. A certain balance must be made when deciding on
10560-421: The front or roof of the ambulance. Most modern ambulances are now fitted with electronic sirens, producing a range of different noises which ambulance operators can use to attract more attention to themselves, particularly when proceeding through an intersection or in heavy traffic. The speakers for modern sirens can be integral to the lightbar, or they may be hidden in or flush to the grill to reduce noise inside
10680-473: The ground responder's ability to determine whether the patient's condition warrants air medical transport. Protocols and training must be developed to ensure appropriate triage criteria are applied. Excessively stringent criteria can prevent rapid care and transport of trauma victims; relaxed criteria can result in the patient being unnecessarily exposed to the potential dangers of dangerous weather conditions or other aviation-related risks. Crew and patient safety
10800-589: The helicopter that responds as an air ambulance is actually operated by the local hydroelectric utility, with the New South Wales Ambulance Service providing paramedics, as required. In some cases, local EMS provides the flight paramedic to the aircraft operator as-needed. In the case of the Los Angeles County Fire Department, the helicopters are brush fire choppers also configured as air ambulances with
10920-402: The high beams, flashed alternately) are known as a wig-wag . Additional white lights may be placed strategically around the vehicle to illuminate the area around it when it is dark, almost always at the rear for loading and unloading stretchers and often at the sides as well. In areas very far North or South where there are times of year with long periods of darkness, additional driving lights at
11040-399: The hospital are congested and for locations more distant from hospitals. In some situations, it may be desirable to dispatch a ground ambulance that can arrive on the scene first to provide immediate patient care, and an air ambulance to transport the patient(s) to a trauma center. It also should be borne in mind that faster may not always be better. In the context of interhospital transport, it
11160-428: The improvement of government standards and CAMTS accreditation. Whilst some air ambulances do have effective methods of funding, in England, they remain almost entirely charity funded, as improved cost-benefit ratios are generally achieved with land-based attendance and transfers. Health outcomes, for example from London's Helicopter Emergency Medical Service , remain uncertain. Although cost-effectiveness may be
11280-637: The inclusion of respiratory therapists in all modes of air transport is becoming more prominent. Ambulance An ambulance is a medically-equipped vehicle used to transport patients to treatment facilities , such as hospitals . Typically, out-of-hospital medical care is provided to the patient during the transport. Ambulances are used to respond to medical emergencies by emergency medical services (EMS), and can rapidly transport paramedics and other first responders , carry equipment for administering emergency care , and transport patients to hospital or other definitive care. Most ambulances use
11400-597: The increased number of car accidents in 1979 on highways , the Yugoslavian government made a decision to buy new or redistribution of use of old helicopters. Air ambulance service, sometimes called Aeromedical Evacuation or simply Medevac , is provided by a variety of different sources in different places in the world. There are a number of reasonable methods of differentiating types of air ambulance services. These include military / civilian models and services that are government -funded, fee-for-service, donated by
11520-489: The medical profession. Other U.S. states require either CAMTS accreditation or a demonstrated equivalent, such as Rhode Island, and Texas, which has adopted CAMTS' Accreditation Standards (Sixth Edition, October 2004) as its own. In Texas, an operator not wishing to become CAMTS accredited must submit to an equivalent survey by state auditors who are CAMTS-trained. Virginia and Oklahoma have also adopted CAMTS accreditation standards as their state licensing standards. While
11640-585: The name of their owner or operator, and an emergency telephone number for the ambulance service. Ambulances may also carry an emblem (either as part of the passive warning markings or not), such as a Red Cross, Red Crescent or Red Crystal (collective known as the Protective Symbols ). These are symbols laid down by the Geneva Convention , and all countries signatory to it agree to restrict their use to either (1) Military Ambulances or (2)
11760-434: The national Red Cross or Red Crescent society. Use by any other person, organization or agency is in breach of international law. The protective symbols are designed to indicate to all people (especially combatants in the case of war) that the vehicle is neutral and is not to be fired upon, hence giving protection to the medics and their casualties, although this has not always been adhered to. In Israel, Magen David Adom ,
11880-494: The number and location of lights: too few and the ambulance may not be noticed easily, too many and it becomes a massive distraction for other road users more than it is already, increasing the risk of local accidents. In addition to visual warnings, ambulances can be fitted with audible warnings , sometimes known as sirens , which can alert people and vehicles to the presence of an ambulance before they can be seen. The first audible warnings were mechanical bells, mounted to either
12000-735: The opportunity to continue the helicopter operation. Only the one located in Hattiesburg, Mississippi did so, and it was therefore established as the first civilian air medical program in the United States. The second program, the Military Assistance to Safety and Traffic (MAST) system, was established in Fort Sam Houston in San Antonio in 1969. This was an experiment by the Department of Transportation to study
12120-644: The original intent of CAMTS was to provide an American standard, air ambulance services in a number of other countries, including three in Canada and one in South Africa, have voluntarily submitted themselves to CAMTS accreditation. In the UK, the AAA has a Code of Conduct that binds one of the most regulated areas of operation together. It brings the Fundraising Standards Board, CAA / EASA and
12240-500: The patient to a hospital, though in rugged areas four-wheel drive or all-terrain vehicles can be used. Fuel must be available and service facilities are necessary to maintain the vehicle . Methods of summoning (e.g. telephone) and dispatching ambulances usually rely on electronic equipment, which itself often relies on an intact power grid . Similarly, modern ambulances are equipped with two-way radios or cellular telephones to enable them to contact hospitals, either to notify
12360-509: The patient) for air ambulance attended patients compared to those attended by a land ambulance. The same review found patient did not arrive at hospital any quicker when attended by an air ambulance. When the same authors looked at health outcomes in Cornwall and London they found no evidence that the attendance of an air ambulance (HEMS) service improved survival in trauma patients. Effective use of helicopter services for trauma depends on
12480-529: The political climate that made the helicopter industry and National Health Service recognise the enormous contribution charities make to trauma care in the United Kingdom. In 2013, the AAA published the "Framework for a High Performing Air Ambulance Service" which details many of the developments from 2008 to 2013. In recent years, the service has moved towards the physician-paramedic model of care. This has necessitated some charities commissioning clinical governance services, however many air ambulances operate under
12600-431: The primary means of transportation between communities is by boat. Early in aviation history, many of these communities began to rely on civilian "bush" pilots, who fly small aircraft and transport supplies, mail, and visiting doctors or nurses. Bush pilots probably performed the first civilian air ambulance trips, albeit on an ad hoc basis—but clearly, a need for these services existed. In the early 1920s, Sweden established
12720-423: The province, performing both interfacility transfers and on-scene responses in support of ground-based EMS. Today, across the world, the presence of civilian air ambulances has become commonplace and is seen as a much-needed support for ground-based EMS systems. In other countries of Europe, like SFR Yugoslavia , first air ambulance appeared in the 1980s. Most of the fleet was previously used in military service. With
12840-660: The provision of ongoing care. While equipment tends to be high-level and very conveniently grouped, it may not be possible to perform some assessment procedures, such as chest auscultation , while in flight. In some types of aircraft, the aircraft's design means that the entire patient is not physically accessible in flight. Additional issues occur with respect to pressurization of the aircraft. Not all aircraft used as air ambulances in all jurisdictions have pressurized cabins and those that do typically tend to be pressurized to only 10,000 feet above sea level. These pressure changes require advanced knowledge by flight staff with respect to
12960-479: The radio of all cars within range, in the manner of a traffic broadcast, but in such a way that the user of the receiving radio is unable to opt-out of the message (as with traffic broadcasts). This feature is built into every RDS radio for use in national emergency broadcast systems, but short-range units on emergency vehicles can prove an effective means of alerting traffic to their presence. It is, however, unlikely that this system could replace audible warnings, as it
13080-552: The remaining models is explored separately. This information applies to air ambulance systems performing emergency service. In almost all jurisdictions, private aircraft charter companies provide non-emergency air ambulance service on a fee-for-service basis. In some cases, governments provide air ambulance services, either directly or via a negotiated contract with a commercial service provider, such as an aircraft charter company. Such services may focus on critical care patient transport, support ground-based EMS on scenes, or may perform
13200-493: The road. Also, the ambulance crew's responsibilities to their patient often preclude their use of safety devices such as seat belts . Research has shown that ambulances are more likely to be involved in motor vehicle collisions resulting in injury or death than either fire trucks or police cars . Unrestrained occupants, particularly those riding in the patient-care compartment, are particularly vulnerable. When compared to civilian vehicles of similar size, one study found that on
13320-428: The same aircraft may be used to search for missing or wanted people. Like ground ambulances, air ambulances are equipped with medical equipment vital to monitoring and treating injured or ill patients. Common equipment for air ambulances includes medications , ventilators , ECGs and monitoring units, CPR equipment, and stretchers . A medically staffed and equipped air ambulance provides medical care in flight—while
13440-415: The same limitations as more traditional over-the-road ambulances. The level of care provided by these ambulances varies between merely providing transport to a medical clinic to providing on-scene and continuing care during transport. The design of intermediate technology ambulances must take into account not only the operation and maintenance of the ambulance, but its construction as well. The robustness of
13560-429: The service meets national public safety standards. The accreditation is done by professionals who are qualified to determine air ambulance safety. In addition, compliance with accreditation standards is checked on a continual basis by the accrediting organization. Accreditation standards are periodically revised to reflect the dynamic, changing environment of medical transport, with considerable input from all disciplines of
13680-550: The specifics of aviation medicine, including changes in physiology and the behaviour of gases. There are a large variety of helicopter makes that are used for the civilian HEMS models. The commonly used types are the Bell 206 , 407 , and 429 , Eurocopter AS350 , BK117 , EC130 , EC135 , EC145 , and the Agusta Westland 109 , 169 & 139 , MD Explorer and Sikorsky S-76. Fixed-wing aircraft varieties commonly include
13800-606: The tasking ambulances services clinical governance. The AAA now publishes Best Practice Guidance on a range of operational and clinical functions and provides a code of conduct that all full members, both ambulance services and charities must uphold. Memorial Hermann Life Flight is a not-for-profit hospital-based critical care air ambulance service in Houston , Texas , USA. As of 2023, it operates six EC-145 twin-engine helicopters. The service relies on community support and fundraising efforts. Memorial Hermann Life Flight operates from
13920-403: The vehicle (which is sometimes purchased incomplete, having no body or interior behind the driver's seat ) and turns it into an ambulance by adding bodywork, emergency vehicle equipment , and interior fittings. This is done by one of two methods – either coachbuilding , where the modifications are started from scratch and built on to the vehicle, or using a modular system, where a pre-built 'box'
14040-669: The wounded off the field of battle were called ambulance wagons. Field hospitals were still called ambulances during the Franco-Prussian War of 1870 and in the Serbo-Turkish war of 1876 even though the wagons were first referred to as ambulances about 1854 during the Crimean War . The history of the ambulance begins in ancient times , with the use of carts to transport incurable patients by force. Ambulances were first used for emergency transport in 1487 by
14160-601: The wounded. Currently, a NATO working group is investigating unpiloted aerial vehicles (UAVs) for casualty evacuation. The first civilian uses of aircraft as ambulances were probably incidental. In northern Canada, Australia, and in Scandinavian countries, remote, sparsely populated settlements are often inaccessible by road for months at a time, or even year-round. In some places in Scandinavia, particularly in Norway,
14280-549: Was at stake, air ambulances would often operate on the very edge of their safety envelopes, going on missions in conditions where no other civilian pilot would fly. As a result, nearly fifty percent of all EMS personnel deaths in the United States occur in air ambulance crashes. In 2006, the United States National Transportation Safety Board ( NTSB ) concluded that many air ambulances crashes were avoidable, eventually leading to
14400-464: Was decided to use the heavily armored Merkava tank. Its rear door enables the evacuation of critically wounded soldiers. Israel did not remove the Merkava's weaponry, claiming that weapons were more effective protection than emblems since Palestinian militants would disregard any symbols of protection and fire at ambulances anyway. For use as ground ambulances and treatment & evacuation vehicles,
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