What is the recommended rescue breath frequency for an adult with a pulse but no breathing, expressed as breaths per minute?

• A. Approximately 10 breaths per minute
• B. 5 breaths per minute
• C. 20 breaths per minute
• D. 60 breaths per minute

Answer: (A)

When an adult has a pulse but isn’t breathing, rescue breaths should be delivered at a steady rate of about one breath every 5 to 6 seconds, which is roughly 10 to 12 breaths per minute. This pace provides enough ventilation to deliver oxygen without overinflating the lungs, which can increase intrathoracic pressure and hinder blood return to the heart. In practice, aiming for about 10 breaths per minute is a practical target that balances effective ventilation with the risk of hyperventilation. Breathing too slowly may not oxygenate adequately, while breathing too quickly can cause gastric inflation and reduce efficiency, so maintaining this moderate rate helps keep oxygen delivery steady while preserving circulation.