ⓘ Stool test

                                     

ⓘ Stool test

One of the most common stool tests, the fecal occult blood test, can be used to diagnose many conditions that cause bleeding in the gastrointestinal system, including colorectal cancer or stomach cancer. Cancers, and to a lesser extent, precancerous lesions, shed abnormal cells into the stool. Cancers and precancerous lesions polyps that are ulcerated or rubbed by passing stool also may shed blood into the stool, which can be identified by a hemoglobin assay.

The American cancer society recommends screening with DNA testing every three years, guaiac fecal occult blood test or fecal immunochemical test every year beginning at age 50. Other options include sigmoidoscopy or colonoscopy virtual CT colonography every five years or colonoscopy every 10 years.

Prevention task force United States services published the updated colorectal cancer screening recommendation statement in 2016.

The national comprehensive cancer network NCCN issued screening guidelines in 2016.

In 2016, the national Committee for quality assurance NCQA released updates for healthcare effectiveness data and information specified in HEDIS for 2017.

A DNA test using samples of feces were approved in August 2014 the FDA as a screening test for non-symptomatic, average-risk adults 50 years and older. In 2017, the study found this test to be less effective compared to colonoscopy or fecal occult blood test. A three-year screening capacity, the estimated value of $11.313 per quality of life adjusted year will be compared with no screening.