The patient takes St. John's wort for depression, but does not tell anyone about this. The psychiatrist prescribes an MAO inhibitor. What will the best assessment of the nurse reveal?
1. Blood pressure of 210/100 mmHg
2. Serum glucose level of 340
3. Blood pressure of 78/40 mmHg
4. Serum potassium of 6.0
Correct Answer: 1
Rationale: Combining St. John's wort and an MAO inhibitor will lead to a hypertensive crisis. Combining St. John's wort and an MAO inhibitor does not result in hyperglycemia. Combining St. John's wort and an MAO inhibitor results in hypertension, not hypotension. Combining St. John's wort and an MAO inhibitor will not result in hyperkalemia.
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