Section 305(b) requires each state to prepare a water quality assessment report every two years. The Environmental Protection Agency (EPA) compiles the information from the state reports and prepares a summary for Congress on the status of the nationâs waters.
Carcinoembryonic antigen (CEA) is a cancer marker. ( 1 See above under cancer markers.) 2  DR-70 is a simple blood test - (See above). 3  Hemoccult Test for colorectal cancer tests for blood in the stool. A positive finding warrants having further tests, like a colonoscopy or sigmoidoscopy to detect polyps and tumors. This test can be performed by almost any doctor's office.
The tests commonly used in diagnosing prostate cancer include: 1  DREs: Digital rectal examinations may be conducted annually for men over the age of 50. 2  PSA tests: Prostate-specific antigen tests may be done annually for men over the age of 50. Men in high-risk groups, such as African-Americans, or those with a strong family history of prostate cancer should consult their physicians about being tested at an earlier age.