For how long should each breath be given during CPR?

In CPR, each breath should be given over a duration of 1 second. This timing allows for adequate inflation of the lungs without causing excessive pressure that could lead to complications such as air entering the stomach instead of the lungs. A single breath should be delivered slowly, ensuring that the chest visibly rises as a result of the air being introduced into the airway, indicating effective ventilation.

Maintaining this 1-second duration helps keep the rhythm of rescue breaths synchronized with chest compressions and ensures that the rescuer provides enough oxygen without interrupting the circulation of blood through compressions for too long. The aim is to maximize effectiveness while adhering to established guidelines that promote the best possible outcome for the patient.