Life saving procedures
As a first aider the priorities when dealing with a casualty are always the same:
- Airway
- Breathing
- Circulation.
A primary survey of a casualty will establish your priorities. When dealing with an unconscious casualty you should open and maintain their airway as your first priority. If the airway should become obstructed, possibly by the tongue falling to the back of the throat, then the casualty will be unable to breathe and this will lead to death if untreated.
If the casualty is breathing, the simple procedure of placing the casualty in to the recovery position should ensure that the airway will remain clear of obstructions.
If the casualty has stopped breathing you can assist them by performing a combination of chest compressions and rescue breaths. You breathe out enough oxygen to potentially keep the casualty alive until the emergency services arrive, the oxygen you breathe into the casualty will need to then be pumped around the body using chest compressions.
It is important to remember that in any life threatening situation the emergency services should be called as soon as breathing or absence of breathing has been identified.
First Aid
First aid is the provision of initial care for an illness or injury. It is usually performed by a non-expert person to a sick or injured casualty until definitive medical treatment can be accessed. Certain self-limiting illnesses or minor injuries may not require further medical care past the first aid intervention. It generally consists of a series of simple and in some cases, potentially life-saving techniques that an individual can be trained to perform with minimal equipment.
While first aid can also be performed on animals, the term generally refers to care of human patients.
Key Skills
Certain skills are considered essential to the provision of first aid and are taught ubiquitously. Particularly, the "ABC"s of first aid, which focus on critical life-saving intervention, must be rendered before treatment of less serious injuries. ABC stands for Airway, Breathing, and Circulation. The same mnemonic is used by all emergency health professionals. Attention must first be brought to the airway to ensure it is clear. Obstruction (choking) is a life-threatening emergency. Following evaluation of the airway, a first aid attendant would determine adequacy of breathing and provide rescue breathing if necessary. Assessment of circulation is now not usually carried out for patients who are not breathing, with first aiders now trained to go straight to chest compressions (and thus providing artificial circulation) but pulse checks may be done on less serious patients.
Some organizations add a fourth step of "D" for Deadly bleeding or Defibrillation, while others consider this as part of the Circulation step. Variations on techniques to evaluate and maintain the ABCs depend on the skill level of the first aider. Once the ABCs are secured, first aiders can begin additional treatments, as required. Some organizations teach the same order of priority using the "3Bs": Breathing, Bleeding, and Bones (or "4Bs": Breathing, Bleeding, Brain, and Bones). While the ABCs and 3Bs are taught to be performed sequentially, certain conditions may require the consideration of two steps simultaneously. This includes the provision of both artificial respiration and chest compressions to someone who is not breathing and has no pulse, and the consideration of cervical spine injuries when ensuring an open airway.