A normal result means no disease-related substances or changes were found in the sample when examined under the microscope.
However, the small intestine normally contains certain healthy bacteria and yeast. Their presence is not a sign of disease.
Normal value ranges may vary slightly among different laboratories. Talk to your doctor about the meaning of your specific test results.
An abnormal result means that certain microorganisms, such as the parasites Giardia or Strongyloides were seen in the tissue sample, or that there were changes in the structure (anatomy) of the tissue.
Kazura JW. Nematode infections. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007: chap 378.
Kaye KS, Kay D. Salmonella infections (including typhoid fever). In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 329.
Hill DR, Nash TE. Giardia lamblia. In: Mandell GL, Bennett JE, Dolin R, eds. Principles and Practice of Infectious Diseases. 7th ed. Philadelphia, Pa: Elsevier Churchill Livingstone; 2009:chap 280.
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