The aim of CPR is to compress the heart b/n sternum and the back bone (spine) thus literally squeezing blood out of it.

Steps:

• Lay the causality on a firm flat surface (see Figure, below).
• Kneel close to the side at right angles to him and alongside his/her chest.
• Press the lower third of the sternum with the heels of your hands.
• Check the carotid pulse every few minutes.
• Chest compression – ventilation 30: 2, for 5 cycles.

• After five cycles of compressions and six cycles of ventilations (30:2) and check for the return of carotid pulse and spontaneous breathing
  

According to the finding of the reassessment (after 2 minutes):

• If there is pulse- place in the recovery position and monitor vital signs until Emergency Medical staff (EMS) arrives.
  
• If there is pulse but no breathing- continue rescue breathing every 5- 6 seconds (10-12 breaths). 
• Recheck pulse every 2 minutes, if no pulse or breathing- continue CPR 30:2 until provider arrives.
  

Repeat A–B-C to 5 cycles of compression and six cycles of breathing. (150:12)

• For children, enough pressure is obtained by using the heel of only one hand (see Figure 26).
  
• For babies, use only two fingers. When the casualty starts to breathe by himself, put him in a recovery position (see Figure 27).