Which option expands EtCO2?

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Prepare for the Prehospital Emergency Pharmacology Test. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which option expands EtCO2?

Explanation:
EtCO2 expands to End-tidal carbon dioxide. End-tidal refers to the CO2 present at the end of an exhalation, which is the gas sampled by capnography. This final-breath CO2 value reflects the alveolar CO2 and gives a noninvasive way to assess ventilation and perfusion. The other options misstate either the gas involved (carbon monoxide) or the terminology (carbonic dioxide) or add a descriptor about measuring rather than the gas itself. The correct expansion is simply End-tidal carbon dioxide.

EtCO2 expands to End-tidal carbon dioxide. End-tidal refers to the CO2 present at the end of an exhalation, which is the gas sampled by capnography. This final-breath CO2 value reflects the alveolar CO2 and gives a noninvasive way to assess ventilation and perfusion. The other options misstate either the gas involved (carbon monoxide) or the terminology (carbonic dioxide) or add a descriptor about measuring rather than the gas itself. The correct expansion is simply End-tidal carbon dioxide.

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