The nurse is caring for a newly admitted patient who will receive digoxin to treat a cardiac dysrhythmia. The patient takes hydrochlorothiazide (HydroDIURIL) and reports regular use of over-the-counter laxatives. Before administering the first dose of digoxin, the nurse will review the patient's electrolytes with careful attention to the levels of which electrolytes?

Question

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Before administering digoxin, the nurse should review the patient's electrolytes with careful attention to the potassium and magnesium levels. Hydrochlorothiazide, an antihypertensive medication, can cause hypokalemia (low potassium levels), which increases the risk of digoxin toxicity. Additionally, over-the-counter laxatives can cause electrolyte imbalances, particularly low magnesium levels, which can also increase the risk of digoxin toxicity. Monitoring the patient's potassium and magnesium levels, and correcting any imbalances before administering digoxin, can help prevent adverse drug reactions.

The Nurse Is Caring for a Newly Admitted Patient Who