How long should one perform CPR before calling for help?

When responding to an emergency involving cardiac arrest, it is critical to initiate CPR as soon as possible. Performing CPR for a short, defined period—commonly around 1 to 2 minutes—before calling for help allows for immediate assistance to be provided to the victim. During this initial period of CPR, you can potentially restore circulation and breathing.

After about 1 to 2 minutes of CPR, one should call for help or direct someone else to do so while continuing CPR. This ensures that emergency medical services are on their way while you are providing life-saving care.

In particular, the choice of 2 minutes aligns with recommended guidelines, as it emphasizes the importance of giving the victim the best chance for survival without unnecessary delays. After this initial time has passed, the call for help is vital to ensure advanced medical support can reach the victim as soon as possible.