The following condition warrants immediate CPR: 1) Victim is unconscious; 2) Victim is not breathing; 3) Victim has no pulse

Before CPR
Victims and you are safe, if adult call 911 before CPR, if child/infant initiate CPR and perform 5 reps, 30 compressions each, with 2 rescue breaths or 2 minutes of CPR, then call 911, also make certain you know where you are to help notify emergency services.

CPR

• A-Airway, determine if the person is breathing and check for obstructions by opening airway;
• B-Breathing, perform two mouth to mouth breaths 1 second each;
• C-Circulation, after checking for pulse via carotid artery or brachial artery for infant, perform 30 compressions, interrupted by two mouth to mouth breaths, one second each; repeat until emergency services arrive 
• Recommended position for performing CPR is to have victim lying flat on his back
• Recommended rate for effective compressions is 100 compressions per minute
• When performing compressions, make sure the chest returns to its original position
• When performing adult CPR the depth of the compressions should be 1 1/2 to 2 inches deep
• When performing child/infant CPR make sure your compressions are 1/3 to 1/2 the depth of the chest
• For child, depending on the size you can use one or two hands
• For infant, use two fingers
• If not comfortable performing mouth to mouth, call 911, but at least administer external chest compressions until help arrives

Proceed to exam