The electrolytes - urine test measures specific chemicals called electrolytes in urine. It most often measures the levels of calcium, chloride, potassium, or sodium.
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Reviewed By: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.