Urine Test: What Affects The Test
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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.
| Last updated: | September 18, 2008 |
|---|---|
| Author: | Caroline Rea, RN, BS, MS |
| Reviewed By: | E. Gregory Thompson, MD - Internal Medicine, Avery L. Seifert, MD - Urology |
| Editors: | Maria Essig, Tracy Landauer |
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