Can medications affect potassium test results?

Yes, certain medications can affect potassium test results. Diuretics, such as furosemide, can lower potassium levels, while ACE inhibitors, ARBs, and potassium-sparing diuretics can increase them. Other medications, like corticosteroids and some antibiotics, may also influence potassium balance. Inform your doctor about all medications and supplements you’re taking before the test to ensure accurate interpretation of results.