You Have Just Placed a Chronic Obstructive Pulmonary Disease (COPD)

You have just placed a chronic obstructive pulmonary disease (COPD) patient on intermittent mandatory ventilation at a rate of 8/min, a V_T of 750 ml, and an FIO₂ of 0.40. To ensure proper equilibration between the alveolar and arterial gas tensions, how long should you wait before drawing a sample for measurement of the ABG?

A) 5 minutes
B) 10 minutes
C) 15 minutes
D) 30 minutes

Correct Answer:

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