TYK136

Which of the following best describes the correct relationship between fractional end tidal concentratrion [FET] and anticipated anesthetic depth?

a) FET is 65% greater than the partial pressure in the blood

b) FET is 65% less than the partial pressure in the blood

c) FET is unrelated to the partial pressure in the blood

d) FET approximates the partial pressure in the blood

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Answer

Answer d.

FET is assumed to be the same as FA (alveolar gas concentration), which approximates the blood partial pressure. Thus, in clinical practice, monitoring end-tidal gas concentration is a useful measure of depth of anesthesia.

Notes

This question originally printed in the Pediatric Anesthesiology Review Topics kindle book series, and appears courtesy of Naerthwyn Press, LLC.

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