Rescue breathing is given to adults at a rate of

• A. 1 breath every 2 seconds
• B. 1 breath every 1 second
• C. 2 breaths per second
• D. 1 breath every 3 seconds

Answer: (B)

Rescue breaths are delivered at a steady, controlled pace to move air into the lungs without over-ventilating. Each breath should last about one second and cause visible chest rise, which shows air is entering the lungs. Doing one breath every second provides a brisk but consistent rate that maintains ventilation without letting breaths become too slow (which would starve the brain of oxygen) or too fast (which can cause air to fill the stomach and lead to complications). In the context of this question, the rate of one breath per second matches the standard taught here for adult rescue breathing, emphasizing a steady rhythm and adequate ventilation with each breath.