How long should you continue CPR before reassessing the victim?

Continuing CPR for about 2 minutes or until performed by EMS personnel or until the victim shows signs of life is crucial because it provides enough time for effective blood circulation and oxygenation to occur, which may help the victim regain consciousness or stable vital signs. CPR is an essential immediate response to cardiac arrest, and consistent compressions done for a period—such as 2 minutes—help maximize the chances of a successful outcome.

During this time, it's important to maintain the rhythm and depth of compressions rather than pausing frequently for reassessment, as interruptions can reduce the efficacy of CPR. Waiting until EMS arrives or until there are clear signs of life, such as movement, breath, or a pulse, ensures that the victim receives the necessary support until professional help can take over.

The other suggestions do not align with established guidelines for CPR protocols. For instance, stopping after one minute to check for a pulse can result in critical delays that may prove detrimental to the victim's chance of survival. Thus, the recommended duration for CPR is structured to ensure maximum effectiveness in life-threatening situations.