Antinuclear Antibodies (ANA)
ANA (Antinuclear Antibodies) 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 medicine. Many medicines can change the results of this test. Be sure to tell your doctor about all the nonprescription and prescription medicines you take.
- Aging. Some older adults (5% to 40%) may have mildly elevated levels. Older women appear to have higher ANA titers than older men.
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| Author: | Sydney Youngerman-Cole, RN, BSN, RNC | Last Updated June 16, 2006 |
| Medical Review: | Kathleen Romito, MD - Family Medicine Stanford M. Shoor, MD - Rheumatology | |
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| Topic Contents | |
| Test Overview | |
| Why It Is Done | |
| How To Prepare | |
| How It Is Done | |
| How It Feels | |
| Risks | |
| Results | |
 | What Affects the Test |
| What To Think About | |
| References | |
| Credits | |