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Fecal culture

Stool culture; Culture - stool; Gastroenteritis fecal culture

 

A fecal culture is a lab test to find organisms in the stool (feces) that can cause gastrointestinal symptoms and disease.

How the Test is Performed

 

A stool sample is needed.

There are many ways to collect the sample.

You can collect the sample:

  • On plastic wrap. Place the wrap loosely over the toilet bowl so that it is held in place by the toilet seat. Put the sample in a clean container given to you by your health care provider.
  • In a test kit that supplies a special toilet tissue. Put it in a clean container given to you by your provider.

Do not mix urine, water, or toilet tissue with the sample.

For children wearing diapers:

  • Line the diaper with plastic wrap.
  • Position the plastic wrap so that it will prevent urine and stool from mixing. This will provide a better sample.

Return the sample to the laboratory as soon as possible. Do not include toilet paper or urine in the specimen.

In the lab, a technician places a sample of the specimen in a special dish. The dish is then filled with a gel that boosts the growth of bacteria or other germs. If there is growth, the germs are identified. The lab technician may also do more tests to determine the best treatment.

 

How to Prepare for the Test

 

You will get a collection container for the stool specimen.

 

How the Test will Feel

 

There is no discomfort.

 

Why the Test is Performed

 

The test is performed when your health care provider suspects that you may have a gastrointestinal infection. It may be done if you have severe diarrhea that does not go away or that keeps coming back.

 

Normal Results

 

There are no abnormal bacteria or other organisms in the sample.

Talk to your provider about the meaning of your specific test results.

 

What Abnormal Results Mean

 

Abnormal results may mean you have an intestinal infection.

 

Risks

 

There are no risks.

 

Considerations

 

Often other stool tests are done in addition to the culture, such as:

  • Gram stain of stool
  • Fecal smear
  • Stool ova and parasites exam

 

 

References

Beavis, KG, Charnot-Katsikas, A. Specimen collection and handling for diagnosis of infectious diseases. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. Philadelphia, PA: Elsevier; 2017:chap 64.

DuPont HL. Approach to the patient with suspected enteric infection. In: Goldman L, Schafer AI, eds. Goldman's Cecil Medicine. 25thed. Philadelphia, PA: Elsevier Saunders; 2016:chap 283.

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.

Hall GS, Woods GL. Medical bacteriology. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. Philadelphia, PA: Elsevier; 2017:chap 58.

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

Siddiqi HA, Salwen MJ, Shaikh MF. Laboratory diagnosis of gastrintestinal and pancreatic disorders. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 23rd ed. Philadelphia, PA: Elsevier; 2017:chap 22.

 
  • Salmonella typhi organism

    Salmonella typhi organism - illustration

    Salmonella typhi.

    Salmonella typhi organism

    illustration

  • Yersinia enterocolitica organism

    Yersinia enterocolitica organism - illustration

    Yersinia enterocolitica

    Yersinia enterocolitica organism

    illustration

  • Campylobacter jejuni organism

    Campylobacter jejuni organism - illustration

    Campylobacter jejuni Campylobacter jejuni Campylobacter jejuni

    Campylobacter jejuni organism

    illustration

  • Clostridium difficile organism

    Clostridium difficile organism - illustration

    Clostridium difficile

    Clostridium difficile organism

    illustration

    • Salmonella typhi organism

      Salmonella typhi organism - illustration

      Salmonella typhi.

      Salmonella typhi organism

      illustration

    • Yersinia enterocolitica organism

      Yersinia enterocolitica organism - illustration

      Yersinia enterocolitica

      Yersinia enterocolitica organism

      illustration

    • Campylobacter jejuni organism

      Campylobacter jejuni organism - illustration

      Campylobacter jejuni Campylobacter jejuni Campylobacter jejuni

      Campylobacter jejuni organism

      illustration

    • Clostridium difficile organism

      Clostridium difficile organism - illustration

      Clostridium difficile

      Clostridium difficile organism

      illustration

    A Closer Look

     

      Self Care

       

        Tests for Fecal culture

         

         

        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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