Fecal/Stool Tests: Fecal Occult Blood Test (FOBT) Fecal Immunochemical Test (FIT) Stool DNA (sDNA)
Fecal Immunochemical Test (FIT)
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Fecal Innumochemical Test (FIT) involves submitting a small amount of a single bowel movement to your doctor's office for testing.
Advantages of FIT
- Inexpensive
- Covered by most health insurance
- Can be completed in the comfort of your home
- No drug or food restrictions
- Collecting a stool sample may take less effort. FIT does not require samples from as many bowel movements.
- More specific than FOBT. FIT only identifies human blood
- Fewer samples are needed for testing.
Disadvantages of FIT
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Only indicates if you already have cancer. FIT cannot identify precancerous polyps.
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Will need to get a colonscopy if test is positive.
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Patients may find the FIT test unpleasant to do.
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May miss tumors that bleed in small amounts or not at all.
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Costs more than a Fecal Occult Blood Test (FOBT)
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Must be done yearly to be considered a fairly reliable alternative to colonoscopy.
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