Like the guaic test or hemoccult test, the immunologic colon cancer screening looks for blood in a stool sample.
There are a few advantages to the immunologic test:
- Simplicity – one test sample instead of three
- Fewer false positive tests, no special diet necessary before testing
- Higher accuracy
Colon cancer is potentially curable if caught early. Therefore it makes sense to screen for colon cancer regularly. If a test is positive, a referral is made to a gastroenterologist for further testing and if deemed necessary for colonoscopy.