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Revision as of 22:08, 29 May 2006 by JamieJones (talk | contribs) (minor formatting, slight text edits)(diff) ← Previous revision | Latest revision (diff) | Newer revision → (diff)ABC stands for Airway, Breathing and Circulation. It is a reminder of the priorities for assessent and treatment of many acute medical situations, from first-aid to hospital medical treatment. Airway, breathing and circulation are vital for life, and each is required, in that order, for the next to be effective.
A - Airway
If the patient's airway is blocked, oxygen cannot reach the lungs and so cannot be transported round the body in the blood. Ensuring a clear airway is is the first step in treating any patient. Common problems with the airway involve blockage by the tongue or vomit.
Initial opening of the airway is often achieved by a "head tilt - chin lift" or jaw thrust technique, although further manouvers such as intubation may be necessary. (See Airway)
B - Breathing
The patient is next assessed for breathing. Common findings during an assessment of breathing may include normal breathing, noisy breathing, gasping or coughing. The rescuer proceeds to act on these based on his/her training. Generally at this point it will become clear whether or not the casualty needs supportive care (such as the recovery position) or Rescue Breathing.
C - Circulation
Once oxygen can be delivered to the lungs by a clear airway and efficient breathing, there needs to be a circulation to deliver it to the rest of the body. This can be assessed in a number of ways, including a pulse check, ECG analysis, or Capillary refill time.
Discussion
The techniques employed at each of the 3 stages will differ according to the training, experience and often the nationality of the rescuer. ABC is fast becoming redundant as different national and international bodies change their priorities from this order.