A patient receiving triamterene is admitted to the hospital due to severe metabolic imbalances. Which of the following abnormal findings would the nurse most expect due to a side effect of the medication?

Hyperkalemia

Explanation

• Triamterene is a potassium-sparing diuretic and can cause hyperkalemia, which can result in fatal cardiac arrhythmias.

• Triamterene is potassium-sparing, so it would not cause potassium to be lower (hypokalemia). 

• Triamterene does not affect calcium, so hypocalcemia and hypercalcemia would not be common metabolic abnormalities. 

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