What is full form of DRAB in Medical first aid?

Explanation:

Unconscious and breathing
DRAB survey

• While you are waiting for help to arrive, follow the primary DRAB survey steps - Danger, Response, Airway, and Breathing.

Danger

• Check that neither you nor the unconscious person is in any danger.
• If necessary make the area safe and then assess them.

Response - unconscious adult or child

• If you are still alone, shout for help again and then see if the person responds:
• Shout at them - for example: 'Can you hear me?' or 'Open your eyes'.
• Gently shake their shoulders.

Airway

• If they respond, they are breathing but check for severe bleeding and other injuries.
• You may need to help them to breathe by opening their airway:
• Place one hand on the forehead and, using two fingers, lift the chin

Breathing

• If they don't respond, you need to check if they are breathing:
• Position your cheek close to their mouth.
• Look, listen and feel for no more than 10 seconds:
  • Look to see if the chest is rising and falling.
  • Listen for breathing. 
  • Feel the breath against your cheek