How long should each breath be delivered when using a bag-mask device?

How long should each breath be delivered when using a bag-mask device?

• A. Over 2 seconds
• B. Over 0.5 seconds
• C. Over 3 seconds
• D. 1 breath over 1 second, watching for chest rise

Answer: (D)

Deliver each breath over about one second and watch for chest rise to confirm you’ve delivered an effective breath. The chest rise shows the lungs are filling with air a proper amount (tidal volume). If you deliver too slowly, you disrupt the rhythm of CPR and risk overinflation or delays in chest compressions; if you deliver too quickly (too short) you may not fill the lungs adequately. Making the breath about a one-second puff and seeing the chest clearly rise is the best way to ensure adequate ventilation with a bag-mask device. If there’s no chest rise, adjust the mask seal or airway position and try again.

Deliver each breath over about one second and watch for chest rise to confirm you’ve delivered an effective breath. The chest rise shows the lungs are filling with air a proper amount (tidal volume). If you deliver too slowly, you disrupt the rhythm of CPR and risk overinflation or delays in chest compressions; if you deliver too quickly (too short) you may not fill the lungs adequately. Making the breath about a one-second puff and seeing the chest clearly rise is the best way to ensure adequate ventilation with a bag-mask device. If there’s no chest rise, adjust the mask seal or airway position and try again.