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Rotavirus antigen test

Gastroenteritis - rotavirus antigen

 

The rotavirus antigen test detects rotavirus in the feces. This is the most common cause of infectious diarrhea in children.

How the Test is Performed

 

There are many ways to collect stool 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. Then you put the sample into a clean container.
  • One type of test kit supplies a special toilet tissue to collect the sample, which is then placed in a container.
  • For infants and young children wearing diapers, line the diaper with plastic wrap. Position the plastic wrap to prevent urine and stool from mixing in order to get a better sample.

The sample should be collected while the diarrhea is occurring. Take the sample to the lab to be checked.

 

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

 

Rotavirus is the leading cause of gastroenteritis ("stomach flu") in children. This test is done to diagnose a rotavirus infection.

 

Normal Results

 

Normally, rotavirus is not found in the stool.

Note: Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your health care provider about the meaning of your specific test results.

 

What Abnormal Results Mean

 

Rotavirus in the stool indicates a rotavirus infection is present.

 

Risks

 

There are no risks associated with this test.

 

Considerations

 

Because rotavirus is easily passed from person to person, take these steps to prevent the germ from spreading:

  • Wash your hands well after contact with a child who could be infected.
  • Disinfect any surface that has been in contact with stool.

Ask your provider about a vaccine to help prevent severe rotavirus infection in children under 8 months old.

Watch infants and children who have this infection closely for signs of dehydration.

 

 

References

Bass DM. Rotaviruses, calciviruses, and astroviruses. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 265.

Haines CF, Sears CL. Infectious enteritis and proctocolitis. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 10th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 110.

Semrad CE. Approach to the patient with diarrhea and malabsorption. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 140.

Zulfigar AB. Acute gastroenteritis in children. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 340.

 
  • Fecal sample

    Fecal sample - illustration

    A stool sample is obtained to test for a rotavirus infection. Rotavirus is the most common cause of infectious diarrhea in children. Children 3 months to 2 years old have the most severe symptoms.

    Fecal sample

    illustration

    • Fecal sample

      Fecal sample - illustration

      A stool sample is obtained to test for a rotavirus infection. Rotavirus is the most common cause of infectious diarrhea in children. Children 3 months to 2 years old have the most severe symptoms.

      Fecal sample

      illustration

    A Closer Look

     

      Self Care

       

        Tests for Rotavirus antigen test

         

         

        Review Date: 5/11/2016

        Reviewed By: Subodh K. Lal, MD, gastroenterologist with Gastrointestinal Specialists of Georgia, Austell, GA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Isla Ogilvie, PhD, and the A.D.A.M. Editorial team.

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