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Another blood test for colorectal cancer screening has shown early promise in the lab and caused a stir in the national media. The test, called Shield, is a product of Guardant Health in Silicon ...
The Food and Drug Administration on Monday approved Guardant Health’s blood test, called Shield, to screen for colon cancer.
In addition to screening, colonoscopies can be used as a diagnostic tool—such as when symptoms of colorectal cancer are present blood in the stool, weight loss, and a change in bowel habits.
Routine use of colonoscopy screening varies globally. In the US, colonoscopy is a commonly recommended and widely utilized screening method for colorectal cancer, often beginning at age 45 or 50, depending on risk factors and guidelines from organizations like the American Cancer Society. [9] However, screening practices differ worldwide.
If the cancer screening does not change the treatment outcome, the screening only prolongs the time the individual lived with the knowledge of their cancer diagnosis. This phenomenon is called lead-time bias. [14] A useful screening program reduces the number of years of potential life lost and disability-adjusted life years lost. However ...
The gold standard of early detection of colon polyp/cancer is the invasive colonoscopy, but with high expense about $557, while tumor marker M2-PK Test expense only about $15-$25. The invasive colonoscopy makes acceptance of it low among patients, so relatively cheap non-invasive M2-PK Test is a good choice for detection early polyp/cancer. [2]