Which of the Following Measures Is/are Useful Indicators in Assessing $\dot { Q }$

question 23

Multiple Choice

Which of the following measures is/are useful indicators in assessing the adequacy of a patient's oxygenation?
I.PaO₂-PaO₂
II.PaO₂-to-FIO₂ ratio
III.V_D/V_T
IV.pulmonary shunt ( $\dot { Q }$ _s/ $\dot { Q }$ _t)

• A)I and II
• B)I and III
• C)II and III
• D)I, II, and III

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