![]() There are a wide variety of parasites that can infect humans. Parasite and their ova have different shapes, sizes and internal structures that are characteristic of their species. If there is an infection, the parasites and their ova (eggs) are shed and passed out of the body and can be detected in the stool. This includes medicines that don't need a prescription and any illegal drugs you may use.An ova, cysts and parasite (OCP) test is a microscopic evaluation of a stool sample, checking for parasites that have infected the gastrointestinal tract. Be sure your healthcare provider knows about all medicines, herbs, vitamins, and supplements you are taking. You may need to stop taking certain medicines before the test. If the sample isn't brought to the lab promptly, the results may not be accurate. These medicines include:Ī sample contaminated by urine or toilet water may have an inaccurate result. This can be true for up to 1 week after you take the medicines. What might affect my test results?Ĭertain medicines can affect your results. Don't collect fecal material from the toilet bowl or put toilet paper into the specimen container. Your healthcare provider will tell you how to collect the sample and how many samples are needed. Positive results mean that you have an infection with a parasite. Normal results are negative, meaning that no parasites, larvae, or eggs were found in your sample. Ask your healthcare provider what your test results mean for you. Your test results may not mean you have a problem. Test results may vary depending on your age, gender, health history, the method used for the test, and other things. Then the eggs can be moved to a slide and looked at under a microscope. For example, if your healthcare provider thinks you may have a pinworm infection, you may have to do a "tape test." In this test, the adhesive side of a piece of cellophane tape is gently pressed to the skin around the anus. You may also need blood tests and other tests for specific parasites. What other tests might I have along with this test? The itching is usually worse at night and may disturb your sleep. ![]() Anal itching is a symptom of a pinworm infection. Pinworms can live in the colon and rectum. Giardia and cryptosporidium are common parasitic illnesses. You may need this test if your healthcare provider suspects that you have parasites in your digestive tract. In their adult form, pinworms are usually large enough to be seen. These include one-celled organisms, such as Giardia, and larger organisms such as pinworms. Parasites are organisms that can live within or on the human body and use it as a source of food. This test looks for parasites and their larvae or eggs (ova) in a sample of your stool. Stool sample exam, stool O&P, fecal smear What is this test? Ova and Parasites (Stool) Does this test have other names? ![]()
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