Phosphate in Urine

PO4 (Phosphate), Urine, Urine PO4 (Phosphate) Test

What Affects the Test

Reasons you may not be able to have the test or why the results may not be helpful include:

• Taking certain medicines, such as diltiazem (such as Cardizem), aspirin, corticosteroids, diuretics, or parathyroid hormone.
• Taking a lot of antacids.
• Not collecting all of your urine within the 24-hour collection period.

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Author:	Maria G. Essig, MS, ELS	Last Updated: November 27, 2007
Medical Review:	Caroline S. Rhoads, MD - Internal Medicine David C.W. Lau, MD, PhD, FRCPC - Endocrinology & Metabolism
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