Wear rubber or latex gloves when collecting the sample. Be sure to wash your hands well when you are done. Taking certain types of medicine may affect your results. These medicines include antibiotics, medicines for diarrhea, enemas, and laxatives. You don't need to prepare for this test. Be sure your healthcare provider knows about all medicines, herbs, vitamins, and supplements you take.
This includes medicines that don't need a prescription and any illegal drugs you may use. Search Encyclopedia.
Stool Culture Does this test have other names? Stool test, stool sample What is this test? Why do I need this test? Symptoms may include: High fever Stools that have blood or mucus in them Severe stomach pain or cramping Severe diarrhea or diarrhea that lasts more than a few days Nausea or vomiting Loss of appetite These symptoms are often caused by food poisoning.
What other tests might I have along with this test? These tests include: Gram stain Other stool tests Loeffler methylene blue stain Blood culture Blood tests. How is this test done?
Does this test pose any risks? This test poses no known risks. Pass stool but no urine into a dry container. You may be given a plastic basin that you can place under the toilet seat to catch the stool.
Either solid or liquid stool can be collected. If you have diarrhea, a large plastic bag taped to the toilet seat may make the collection process easier. The bag is then placed in a plastic container. Do not collect the sample from the toilet bowl.
Do not mix toilet paper, water, or soap with the sample. Place the lid on the container. Label it with your name, your doctor's name, and the date the stool was collected. If you need more than one sample, use a separate container for each sample. Collect a sample only once a day unless your doctor gives you other directions. How It Feels Most people do not feel pain when they collect a stool sample.
Risks There is no chance for problems while collecting a stool sample. Results A stool culture is done to find bacteria, viruses, parasites, or fungi that may be causing an infection. Stool culture Normal: No disease-causing bacteria, fungi, parasites, or viruses are present or grow in the culture.
Abnormal: Bacteria such as salmonella , shigella, or certain types of E. What Affects the Test You may not be able to have the test, or the results may not be helpful, if: You recently used antibiotics, medicine such as bismuth to control diarrhea, enemas, or laxatives. You recently had X-ray tests using a contrast material containing barium. Your stool sample is mixed with urine. You do not have a large enough sample. You did not get the stool sample to the lab for testing quickly enough.
What To Think About You may have an infection even if your stool culture test is normal. A stool sample may be checked for parasites such as pinworms, roundworms, tapeworms, and Giardia. Pinworms Giardiasis A stool sample can also be checked for: White blood cells, which may be caused by diseases such as inflammatory bowel disease. Blood, which may be caused by ulcers or cancer of the colon. Poisons that some types of bacteria make. A stool analysis is a series of tests done on a sample of stool to help diagnose certain conditions that affect the digestive tract.
These conditions include infection, poor absorption, and cancer. To learn more, see the topic Stool Analysis. Laboratory Tests and Diagnostic Procedures, 5th ed. Louis: Saunders. Manual of Laboratory and Diagnostic Tests, 8th ed. Philadelphia: Lippincott Williams and Wilkins.
Mosby's Manual of Diagnostic and Laboratory Tests, 4th ed. Medicine Baltimore. Published online Jul Find articles by Sun Young Cho. Author information Article notes Copyright and License information Disclaimer. Published by Wolters Kluwer Health, Inc. The work cannot be changed in any way or used commercially without permission from the journal. This article has been cited by other articles in PMC. Abstract We aimed to investigate the diagnostic yield of stool cultures and identify predictive factors for positive cultures in patients with diarrheal illness.
Keywords: CRP, diarrhea, stool culture. Introduction Acute diarrheal disease is a common condition encountered in the clinical field worldwide. Materials and methods 2. Study setting and population All patients including children, adolescents, and adults who underwent stool cultures for episodes of diarrheal illness at Chung-Ang University Hospital, from December to November , were included in the study and their clinical and laboratory data were reviewed.
Stool culture Stool specimens were collected in aseptic storage bins and strictly handled by standard laboratory procedures. Determining predictive factors for positive stool culture After determining culture positive rate, the characteristics of the culture positive group were compared with those of same number of culture negative group as controls.
Statistical analyses To investigate the predictors for positive stool cultures, we compared the characteristics between patients with positive culture and those without. Results 3. Stool culture positive rate and bacterial isolation During the study period, a total of 22, stool cultures were performed at our hospital from consecutive 13, patients [ Table 1 Stool culture positive rates.
Open in a separate window. Table 2 Stool isolates in patients with diarrheal illness. Comparison between the stool culture positive and negative groups and the predictors for positive culture Mean age was Table 3 Demographics and clinical features of stool culture positive and negative patients. Table 4 Independent predictors of positive stool culture in multivariate regression analysis. Discussion Acute diarrheal illness is commonly encountered in the clinical field, which usually has a self-limiting course.
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