| Action | Adult | Child | Infant |
| Calling for Additional Resources | Immediately, then perform CPR. | If alone, 2 minutes of CPR before leaving to call | If alone, 2 minutes of CPR before leaving to call |
| Airway: Head-Tilt/Chin-Lift | Past neutral position | Slightly past neutral position | Neutral position |
| Ventilations: Respiratory Arrest | 1 ventilation every 5 to 6 seconds | 1 ventilation every 3 seconds | 1 ventilation every 3 seconds |
| Compression Rate | 100–120/minute | 100–120/minute | 100–120/minute |
| Compression Depth | At least 2 inches | About 2 inches | About 1½ inches |
| Compressions: Ventilations Ratio | One rescuer 30:2 Two rescuers 30:2 | One rescuer—30:2 Two rescuers 15:2 | One rescuer 30:2 Two rescuers 15:2 |
| AED Pads | Adult pads: age > 8 years weight > 55 lbs | Child pads: age 1–8 years weight < 55 lbs Adult pads if child pads not available | Child pads: below age of 1 year Adult pads if child pads not available |
| AED Pad Placement | Upper right chest below right clavicle to right of sternum Left side of chest just below nipple line | Upper right chest below right clavicle to right of sternum Left side of chest just below nipple line If pads risk touching each other anterior posterior placement | Anterior/posterior placement: Middle of chest Back between scapulae |
