When dealing with a collapsed casualty, follow the ABC of resuscitation shown below to assess whether the casualty is breathing and has a pulse.
A FOR AIRWAY
If the casualty is unconscious and lying on his back, the tongue may block the air passage
Open the airway by lifting the chin with two fingers and pressing on the forehead to tilt the head back.
B FOR BREATHING
To find out whether or not a casualty is breathing, kneel down beside him and place your cheek as near his mouth as possible then look, listen and feel for any signs of breathing for up to ten seconds.
C FOR CIRCULATION
Check the casualty’s circulation; feel for the carotid pulse in the neck for an adult, or the brachial pulse in the arm for a baby. Look for other signs of circulation, such as a healthy skin color.