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.
Occasionally, you will get imaging tests to see how your treatments are working and whether the cancer has spread. Common imaging tests include: 1  CT scans, where an X-ray machine circles around as you lie on a table. 2  Bone scans with an injection that helps show areas with cancer. 3  Your doctor may call this scintigraphy.