Fifth Disease: Exams And Tests
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Exams and Tests
A health professional usually diagnoses fifth disease by observing its distinctive rash 
, by asking about any history of exposure to the disease, and by conducting a physical exam. Viral tests may be done to confirm a recent infection (within the past 3 months) by the presence of certain antibodies. In addition, a complete blood count (CBC) may be done to help rule out a bacterial infection or to check for anemia.
Diagnosing fifth disease during pregnancy
A pregnant woman may have a blood test for parvovirus B19 antibodies if she is exposed to or has symptoms of fifth disease. The blood test may indicate that she has:
- Had the disease in the past and is now immune.
- Not had the disease in the past and does not have immunity. She should avoid exposure to parvovirus B19.
- Recently contracted the disease and should be closely monitored throughout her pregnancy. This may include frequent fetal ultrasounds.
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| Last updated: | March 07, 2007 |
|---|---|
| Author: | Debby Golonka, MPH |
| Reviewed By: | Michael J. Sexton, MD - Pediatrics, Christine Hahn, MD - Epidemiology |
| Editors: | Susan Van Houten, RN, BSN, MBA, Pat Truman |
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