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    Smear of duodenal fluid aspirate

    Duodenal aspirated fluid smear

    Smear of duodenal fluid aspirate is an examination of fluid taken from the duodenumto check for signs ofa possible infection (such as giardia or strongyloides).

    How the Test is Performed

    For information on how the sample is taken, see:Esophagogastroduodenoscopy (EGD)

    How to Prepare for the Test

    Do not eat or drink anything, even water, for 12 hours before the test.

    How the Test Will Feel

    You may have a gagging sensation as the tube is passed, but the procedure is usually not painful.

    Why the Test is Performed

    The test is done to diagnose infection of the small bowel, but it is only rarely necessary. In most cases, this test is only done when a diagnosis could not be made with a stool examination or other tests.

    Normal Results

    There should be no disease-causing organisms in the duodenum. Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.

    What Abnormal Results Mean

    The results may show the presence of giardia protozoa, the intestinal parasite strongyloides, or another infectious organism.

    Risks

    The risks include bleeding, perforation of (poking a hole in) the gastrointestinal tract by the scope, and infection. Certain pre-existing conditions may prohibit use of this test.

    Considerations

    Other, less invasive, tests can often detect the presence of giardia and other infections.

    References

    DuPont HL. Approach to the patient with suspected enteric infection. In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed.Philadelphia, Pa: Saunders Elsevier; 2011:chap 291.

    Semrad CE. Approach to the patient with diarrhea and malabsorption.In: Goldman L, Schafer AI, eds. Cecil Medicine. 24th ed. Philadelphia, Pa:Saunders Elsevier; 2011:chap142.

    Giannella RA. Infectious enteritis and proctocolitis and bacterial food poisoning. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger& Fordtran’s Gastrointestinal and Liver Disease. 9th ed. Philadelphia, Pa:Saunders Elsevier; 2010:chap 107.

    Croft AC, Woods GL. Specimen collection and handling fordiagnosis of infectious diseases.In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 22nd ed. Philadelphia,Pa: Saunders Elsevier; 2011:chap 63.

    Salwen MJ, Siddiqi HA, Gress FG, Bowne WB. Laboratory diagnosisof gastrointestinal and pancreatic disorders.In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 22nd ed. Philadelphia,Pa: Saunders Elsevier; 2011:chap 22.

    Fritsche TR, Selvarangan R. Medical parasitology. In: McPherson RA, Pincus MR, eds. Henry's Clinical Diagnosis and Management by Laboratory Methods. 22nd ed. Philadelphia, Pa: Saunders Elsevier; 2011:chap 62.

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    • Duodenum tissue smear

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      • Duodenum tissue smear

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          Tests for Smear of duodenal fluid aspirate

          Review Date: 5/31/2012

          Reviewed By: Linda J. Vorvick, MD, Medical Director and Director of Didactic Curriculum, MEDEX Northwest Division of Physician Assistant Studies, Department of Family Medicine, UW Medicine, School of Medicine, University of Washington. Jatin M. Vyas, MD, PhD, Assistant Professor in Medicine, Harvard Medical School; Assistant in Medicine, Division of Infectious Disease, Department of Medicine, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.

          The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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