Medical Science · Medicine
A client with severe COPD is receiving oxygen at 4 L/min via a nasal cannula. The nurse observes that the patient has become increasingly drowsy and lethargic. What is the most likely underlying cause of this change?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Acute cerebral hypoxia due to insufficient oxygen supply
- 2Respiratory alkalosis resulting from hyperventilation
- 3CO2 narcosis due to severe respiratory acidosis
- 4Oxygen-induced hypercapnia (blunting of the hypoxic drive)✓
Correct answer
Oxygen-induced hypercapnia (blunting of the hypoxic drive)
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