Urine Test

Urinalysis

What Affects the Test

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

• If you are having your menstrual period.
• Taking medicines, such as diuretics, erythromycin, trimethoprim (Trimpex), or high doses of vitamin C (ascorbic acid) taken with an antibiotic, such as tetracycline.
• Having an X-ray test with contrast material in the past 3 days.
• Not getting urine sample to lab in 1 hour.

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Author:	Jan Nissl, RN, BS	Last Updated: November 17, 2006
Medical Review:	Martin Gabica, MD - Family Medicine Avery L. Seifert, MD - Urology
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