When providing ventilations for an adult in cardiac arrest, what indicates adequate ventilation?

When providing ventilations for an adult in cardiac arrest, what indicates adequate ventilation?

• A. Breath sounds heard in both lungs
• B. Visible chest rise
• C. No gastric inflation
• D. Tidal volume exceeds 700 mL

Answer: (B)

The key idea is that adequate ventilation during adult CPR is shown by visible chest rise with each breath. When you deliver a breath, watching the chest lift confirms that air is entering the lungs and reaching the alveoli, providing effective tidal volume. This real-time visual cue is the most reliable feedback you have in the moment. Breath sounds, while sometimes considered, can be misleading during CPR and aren’t a dependable measure of ventilation quality. Absence of gastric inflation isn’t a practical indicator you can consistently monitor, and aiming for a specific tidal volume like 700 mL isn’t reliable in the field since volumes vary and can risk gastric inflation. So, the clearest, most useful sign of adequate ventilation is the chest rising with each breath.

The key idea is that adequate ventilation during adult CPR is shown by visible chest rise with each breath. When you deliver a breath, watching the chest lift confirms that air is entering the lungs and reaching the alveoli, providing effective tidal volume. This real-time visual cue is the most reliable feedback you have in the moment.

Breath sounds, while sometimes considered, can be misleading during CPR and aren’t a dependable measure of ventilation quality. Absence of gastric inflation isn’t a practical indicator you can consistently monitor, and aiming for a specific tidal volume like 700 mL isn’t reliable in the field since volumes vary and can risk gastric inflation. So, the clearest, most useful sign of adequate ventilation is the chest rising with each breath.