Ammonia: 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:
- Smoking.
- Severe constipation.
- Eating a high-protein or a low-protein diet.
- Using medicines that increase blood ammonia levels, such as heparin, some diuretics (such as furosemide), acetazolamide, and valproic acid.
- Using medicines that decrease ammonia levels, such as neomycin, tetracycline, diphenhydramine, isocarboxazid (Marplan), phenelzine (Nardil), and tranylcypromine (Parnate), heparin, and lactulose.
- Strenuous exercise just before the test.
| Last updated: | January 02, 2008 |
|---|---|
| Author: | Maria G. Essig, MS, ELS |
| Reviewed By: | Kathleen Romito, MD - Family Medicine, Jerome B. Simon, MD, FRCPC, FACP - Gastroenterology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Tracy Landauer |
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