Eating the right foods and drinking plenty of water is always important to your health. Focusing on good nutrition is even more important before and after you donate plasma. Follow these tips for a safe and successful plasma donation experience and to get your body ready to donate. On this page: Before you donate plasma, After you donate plasma, Anytime.
Screening Tests That Have Been Shown to Reduce Cancer Deaths. 1  Colonoscopy, sigmoidoscopy, and high-sensitivity fecal occult blood tests (FOBTs) These tests have all been shown to reduce deaths from colorectal cancer. 2  Low-dose helical computed tomography.
Although no single test can be used to diagnose cancer, laboratory tests such as blood and urine tests give the doctor important information. If cancer is present, the lab work may show the effects of the disease on the body. In some cases, special tests are used to measure the amount of certain substances called tumor markers in the blood, urine, and other body fluids, or tumor tissue.