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Rotavirus antigen test |
| Definition: |
| The rotavirus antigen test is a test for the presence of rotavirus in the feces. Rotavirus is the most common cause of infectious diarrhea in children. Children 3 months to 2 years old have the most severe symptoms. |
| How the test is performed: |
| Adults and children: There are many ways to collect the samples. You can catch the stool on plastic wrap that is loosely placed over the toilet bowl and held in place by the toilet seat. Put the sample in a clean container. One test kit supplies a special toilet tissue used to collect the sample which is then placed in a clean container. Infants and young children: For children wearing diapers, you can line the diaper with plastic wrap. If the plastic wrap is positioned properly, mixing of urine and stool can be minimized for a better sample. The sample should be collected during the acute phase of the infection, which is the period of ongoing diarrhea. The sample is then taken to the laboratory for evaluation. |
| How to prepare for the test: |
| No special preparation is necessary for this test. |
| How the test will feel: |
| The test involves normal defecation. |
| Why the test is performed: |
| This test is performed to diagnose a rotavirus infection. |
| Normal Values: |
| Normally, rotavirus is not found in the stool. |
| What abnormal results mean: |
| Rotavirus in the stool indicates a rotavirus infection is present. |
| What the risks are: |
| There are no risks associated with this test. |
| Special considerations: |
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Because rotavirus is easily transmitted from person to person, thoroughly wash your hands after contact with the infected child. Any surface that has been in contact with stool should be disinfected. Infants and children should be monitored for signs of dehydration. |
Reviewed By: Rocio Hurtado, M.D., Infectious Diseases Division, Massachusetts General Hospital and Brigham and Women's Hospital, Boston, MA. Review provided by VeriMed Healthcare Network.
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