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.
Syphilis tests are used to screen for and/or diagnose infection with Treponema pallidum, the bacterium that causes syphilis. For more details about syphilis infection, see the What is being tested? section. Several different types of tests are available. Antibody tests are most commonly used. Antibody tests (serology)âthese tests detect antibodies in the blood and sometimes in the cerebrospinal fluid (CSF). Two general types are available for syphilis testing, nontreponemal antibody test and treponemal antibody test (derived from the name of the bacterium).