A patient who has been receiving diuretic therapy is admitted to the emergency department with a serum potassium level of 3.0 mEq/L. The nurse should alert the health care provider immediately that the patient is on which medication?
a. Oral digoxin (Lanoxin) 0.25 mg daily
b. Ibuprofen (Motrin) 400 mg every 6 hours
c. Metoprolol (Lopressor) 12.5 mg orally daily
d. Lantus insulin 24 U subcutaneously every evening
ANS: A
Hypokalemia increases the risk for digoxin toxicity, which can cause serious dysrhythmias. The nurse will also need to do more assessment regarding the other medications, but they are not of as much concern with the potassium level.
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