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The Food and Drug Administration (FDA) has recently approved a blood test screening for colorectal cancer that has an over 83% success rate at detecting the presence of this form of cancer.
The fecal immunochemical test (FIT) is a diagnostic technique that examines stool samples for traces of non-visible blood, which could potentially indicate conditions including bowel cancer. [1] Symptoms which could be caused by bowel cancer and suggest a FIT include a change in bowel habit, anaemia , unexplained weight loss, and abdominal pain .
The American College of Gastroenterology has recommended the abandoning of gFOBT testing as a colorectal cancer screening tool, in favor of the fecal immunochemical test (FIT). [3] The newer and recommended tests look for globin, DNA, or other blood factors including transferrin, while conventional stool guaiac tests look for heme.
Since the mid-1990s there’s been a troubling rise in colon cancer in people younger than 55, with rates increase increasing by 1% to 2% per year among that age group.
Fecal occult blood testing (FOBT), as its name implies, aims to detect subtle blood loss in the gastrointestinal tract, anywhere from the mouth to the colon.Positive tests ("positive stool") may result from either upper gastrointestinal bleeding or lower gastrointestinal bleeding and warrant further investigation for peptic ulcers or a malignancy (such as colorectal cancer or gastric cancer).
A new study finds that home colon cancer screening tests may be as effective as a colonoscopy at preventing cancer death. ... new research suggests that a noninvasive colorectal cancer screening ...
The consequences of overdiagnosis and overtreatment resulting from cancer screening can lead to a decline in quality of life, due to the adverse effects of unnecessary medication and hospitalization. [10] [12] [13] The accuracy of a cancer screening test relies on its sensitivity, and low sensitivity screening tests can overlook cancers. [10]
In the U.S., screening is recommended for healthy adults ages 45 to 75 at average risk for colon cancer. Frequency depends on the test: a routine colonoscopy is every 10 years.