1. A 25-year-old woman is recovering from severe pneumonia and has been receiving ventilatory support for 2 days. Current FIO2 is 0.6, and the patient’s PaO2 on this setting is 200 mm Hg. What change in FIO2 would achieve a target PaO2 of 80 mm Hg? A. 0.75 B. 0.25 C. 0.50 D. 0.40

Basic Clinical Lab Competencies for Respiratory Care: An Integrated Approach
5th Edition
ISBN:9781285244662
Author:White
Publisher:White
Chapter5: Pulmonary Function Testing
Section: Chapter Questions
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1. A 25-year-old woman is recovering from severe pneumonia and has been receiving ventilatory support for 2 days. Current FIO2 is 0.6, and the patient’s PaO2 on this setting is 200 mm Hg. What change in FIO2 would achieve a target PaO2 of 80 mm Hg?

A. 0.75

B. 0.25

C. 0.50

D. 0.40

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