| Step/Action | Adult 8 years and up | Child 1 to 8 years | Infant under 1 year |
| Airway | Head tilt / chin lift | ||
| Breaths Initial | 2 breaths at 1 second/breath | ||
| Foreign body airway obstruction | Back blows Abdominal thrusts | Back slaps and chest thrusts | |
| Compressions | |||
| Compression landmarks | In the center of chest, between nipples | Just below nipple line | |
| Compression method Push hard and fast Allow complete recoil | 2 hands: Heel of 1 hand, second hand on top | 2 hands: Heel of 1 hand with second on top or 1 hand: Heel of 1 hand only | 2 fingers |
| Compression depth | 1.5 to 2 inches | About 1/3 to 1/2 the depth of the chest | |
| Compression rate | About 100/min | ||
| Compression Ventilation ratio | 30:2 | ||
| Defibrillation | |||
| AED | Use adult pads. Do not use child pads/child system | Use after 5 cycles of CPR. Use child pads/system if available. If not, use adult AED and pads. | No recommendation |
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