During manual ventilation, the patient’s ETCO2 reading is 28 mmHg. What should you direct the EMR to do?

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Multiple Choice

During manual ventilation, the patient’s ETCO2 reading is 28 mmHg. What should you direct the EMR to do?

End-tidal CO2 reflects alveolar ventilation and normal values are roughly 35–45 mmHg. A reading of 28 mmHg means hypocapnia from over-ventilation—you're delivering too much air or too rapidly, washing out CO2. The best fix is to decrease the ventilation rate (and/or tidal volume) so CO2 isn’t blown off as quickly and ETCO2 can rise back toward normal. Increasing the rate would make CO2 drop further; holding ventilation briefly doesn’t address the underlying pattern, and checking for airway obstruction is not the immediate corrective step unless obstruction is suspected and still unresolved after adjusting ventilation.

End-tidal CO2 reflects alveolar ventilation and normal values are roughly 35–45 mmHg. A reading of 28 mmHg means hypocapnia from over-ventilation—you're delivering too much air or too rapidly, washing out CO2. The best fix is to decrease the ventilation rate (and/or tidal volume) so CO2 isn’t blown off as quickly and ETCO2 can rise back toward normal. Increasing the rate would make CO2 drop further; holding ventilation briefly doesn’t address the underlying pattern, and checking for airway obstruction is not the immediate corrective step unless obstruction is suspected and still unresolved after adjusting ventilation.

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