What is the BVM ventilation rate for an adult in seconds per breath?

• A. 6 seconds per breath
• B. 2 seconds per breath
• C. 12 seconds per breath
• D. 20 seconds per breath

Answer: (A)

The main idea is delivering rescue breaths with a bag-valve mask at a rate that provides adequate ventilation without overdoing it. For an adult, the recommended pace is about one breath every 5 to 6 seconds, which is roughly 10 to 12 breaths per minute. Choosing six seconds per breath keeps you within that target window, giving enough air to ventilate without causing hyperventilation or excessive intrathoracic pressure.

Breathing much faster, like every 2 seconds, would be about 30 breaths per minute and can lead to over-ventilation, gastric inflation, and reduced effectiveness of chest compressions. Breathing much slower, like every 12 or 20 seconds, would under-ventilate the patient. So, six seconds per breath is the best fit for adult BVM ventilation.