what is fecal occult blood tests
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Overview of Fecal Occult Blood Test (FOBT) View All. A fecal occult blood test (FOBT) is a non-invasive way to screen for blood in your stools, which can be a symptom of colon cancer. If a FOBT finds blood in your stools, you will be referred for further colon cancer screening, such as colonoscopy or flexible sigmoidoscopy. What is a Fecal Occult Blood Test For the fecal occult blood test (FOBT), you collect several stool samples and then ship these samples to a laboratory to be tested for the presence of blood. Your doctor will provide you with the kit to collect your stool samples or will tell you where you can purchase the kit for yourself.
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occult blood test obscure or hidden from view. occult blood test examination by microscope or chemical test of a specimen (such as feces, urine, or gastric juice) for presence of blood that is not otherwise detectable. Feces are tested when intestinal bleeding is suspected but there is no visible evidence of blood.
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Overview There are several types of fecal occult blood tests, each with a different approach to collecting and testing stool. They include: Guaiac fecal occult blood test (gFOBT). Your doctor typically gives you a test card with room for two or three samples or two or three test cards.
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Fecal Immunochemical Test (FIT) Updated June 18, 2016. A fecal immunochemical test (FIT) (also called an immunochemical fecal occult blood test or iFOBT) is used to test the stool for blood that can not be seen with the naked eye (called occult blood).
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Colorectal Cancer Screening Accessible – FOBTs are non-invasive, they can be performed at home and mailed to the lab. Simple – It takes about 5 minutes over 3 days to give you peace of mind. Yearly – The most effective FOBT method is performed yearly. A fecal occult blood test (FOBT) is a noninvasive test that detects the. presence of hidden (occult) blood in the stool. Such blood may arise. from anywhere along the digestive tract. Hidden blood in stool is often. the first, and in many cases the only, warning sign that a person has.
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Colorectal Cancer Screening Tests Stool Tests. 1  The guaiac-based fecal occult blood test (gFOBT) uses the chemical guaiac to detect blood in the stool. It is done once a year. For this test, you receive a test kit from your health care provider. At home, you use a stick or brush to obtain a small amount of stool.
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Colonoscopy A fecal occult blood test, also called FOBT, is a non-invasive screening test for blood in the stool, which can be a sign of colon cancer.
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Fecal Occult Blood Test (FOBT) Fecal Occult Blood Test (FOBT) The fecal occult blood test (FOBT) is a type of screening that could indicate colorectal cancer, but not diagnose it. This test checks for blood in the stool which cannot be seen with the naked eye. If blood is detected, additional testing would be required to determine the source of the blood. Fecal occult blood testing is what is known as a qualitative test. It only detects the presence or absence of blood. If blood is present, the test cannot evaluate how much blood is in the stool.
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Fecal Occult Blood Test Center A fecal occult blood test (FOBT) is performed on samples of stool in order to detect occult blood in otherwise normal–colored stool. There are two types of fecal occult blood tests: chemical and immunologic. FOBT is primarily used to detect colon cancer.
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Fecal occult blood In the event of a positive fecal occult blood test, the next step in the workup is a form of visualization of the gastrointestinal tract by one of several means: 1  Sigmoidoscopy, an examination of the rectum and lower colon with a lighted instrument to look for abnormalities, such as polyps.
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Fecal occult blood test 1 A fecal occult blood test is considered negative if no blood is detected in your stool samples. 2  If you had the test to screen for colon cancer and you're at average risk — you have no colon cancer risk factors other than age — your doctor may recommend waiting one year and then repeating the test.
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Fecal occult blood Fecal occult blood. Fecal occult blood (FOB) refers to blood in the feces that is not visibly apparent (unlike other types of blood in stool such as melena or hematochezia). A fecal occult blood test (FOBT) checks for hidden (occult) blood in the stool (feces).
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Medical Definition of Test, stool occult blood Medical Definition of Test, stool occult blood. Test, stool occult blood: A test to see whether there is blood in the bowel movement. Also called a fecal occult blood test: A test to check for microscopic blood in stool. (Fecal refers to stool. Occult means hidden.) Abbreviated stool OB.
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Overview Typically, occult blood is passed in such small amounts that it can be detected only through the chemicals used in a fecal occult blood test. If blood is detected through a fecal occult blood test, additional tests may be needed to determine the source of the bleeding. The fecal occult blood test can only detect the presence or absence of blood — it doesn't indicate potential sources of bleeding.
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Fecal Occult Blood Test The immunologic fecal occult blood test has additional advantages over the chemical fecal occult blood test. First, it is more sensitive for blood. This means that given the same amount of blood in the stool, the immunologic fecal occult blood test will more frequently be abnormal.
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Fecal occult blood Fecal occult blood (FOB) refers to blood in the feces that is not visibly apparent (unlike other types of blood in stool such as melena or hematochezia).ecal occult blood (FOB) refers to blood in the feces that is not visibly apparent (unlike other types of blood in stool such as melena or hematochezia).
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Overview of Fecal Occult Blood Test (FOBT) What is a Fecal Occult Blood Test For the fecal occult blood test (FOBT), you collect several stool samples and then ship these samples to a laboratory to be tested for the presence of blood. Your doctor will provide you with the kit to collect your stool samples or will tell you where you can purchase the kit for yourself.
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Fecal Occult Blood Test A fecal occult blood test is done primarily to detect colon cancer in people without intestinal symptoms. Cancers of the colon are common and frequently produce fecal occult blood long before they cause other symptoms such as abdominal pain, rectal bleeding, or changes in bowel habits.
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Fecal Occult Blood Test Fecal occult blood usually is a result of slow (often intermittent) bleeding from inside the upper or lower gastrointestinal tract. The slow bleed does not change the color of the stool or result in visible bright red blood. Therefore, the blood is found only by testing the stool for blood in the laboratory.
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- A fecal occult blood test detects blood in the stool by placing a small sample of stool on. a chemically treated card, pad, or wipe; then a chemical developer solution is put on top. of the sample. If the card, pad, or cloth turns blue, there is blood in the stool.
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- Updated February 18, 2016. A fecal occult blood test (FOBT) is a non-invasive way to screen for blood in your stools, which can be a symptom of colon cancer. If a FOBT finds blood in your stools, you will be referred for further colon cancer screening, such as colonoscopy or flexible sigmoidoscopy.
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- 1 A fecal occult blood test is considered positive if blood is detected in your stool samples. 2  You may need additional testing — such as a colonoscopy — to locate the source of the bleeding. If you had the test to screen for colon cancer and you're at average risk — you have no colon cancer risk factors other than age — your doctor may recommend waiting one year and then repeating the test. 2  Positive result. 3  A fecal occult blood test is considered positive if blood is detected in your stool samples.