What Fractional Inspired Oxygen (FɪO₂)setting Should Be Set on the Ventilator

question 31

Multiple Choice

What fractional inspired oxygen (FɪO₂) setting should be set on the ventilator when the patient currently has a partial pressure of oxygen (PₐO₂) of 53 mm Hg while receiving 50% oxygen and the desired PₐO₂ is 90 mm Hg?

• A) 0.64
• B) 0.74
• C) 0.85
• D) 0.95

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