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2. Carcinoembryonic antigen - Wikipedia

   en.wikipedia.org/wiki/Carcinoembryonic_antigen

   Consequently, CEA is usually present at very low levels in the blood of healthy adults (about 2–4 ng/mL). [2] However, the serum levels are raised in some types of cancer, which means that it can be used as a tumor marker in clinical tests. Serum levels can also be elevated in heavy smokers. [3]

3. Tumor M2-PK - Wikipedia

   en.wikipedia.org/wiki/Tumor_M2-PK

   M2-PK, as measured in feces, is a potential tumor marker for colorectal cancer. When measured in feces with a cutoff value of 4 U/ml, its sensitivity has been estimated to be 85% (with a 95% confidence interval of 65 to 96%) for colon cancer and 56% (confidence interval 41–74%) for rectal cancer. [1] Its specificity is 95%. [2]

4. Colorectal cancer - Wikipedia

   en.wikipedia.org/wiki/Colorectal_cancer

   The signs and symptoms of colorectal cancer depend on the location of the tumor in the bowel, and whether it has spread elsewhere in the body ().The classic warning signs include: worsening constipation, blood in the stool, decrease in stool caliber (thickness), loss of appetite, loss of weight, and nausea or vomiting in someone over 50 years old. [15]

5. New colorectal cancer blood test approved by FDA: What to know

   www.aol.com/colorectal-cancer-blood-test...

   The Food and Drug Administration (FDA) has recently approved a blood test screening for colorectal cancer that has an over 83% success rate at detecting the presence of this form of cancer.

6. Blood test to detect colon cancer could move a step closer to ...

   www.aol.com/news/blood-test-detect-colon-cancer...

   Guardant Health’s Shield tests could be the first approved blood screening test for colorectal cancer that meets requirements for Medicare reimbursement. Blood test to detect colon cancer could ...

7. FDA approves new blood test to screen for colon cancer

   www.aol.com/news/fda-approves-blood-test-screen...

   The Food and Drug Administration on Monday approved Guardant Health’s blood test, called Shield, to screen for colon cancer.

8. Tumor marker - Wikipedia

   en.wikipedia.org/wiki/Tumor_marker

   A tumor marker is a biomarker that can be used to indicate the presence of cancer or the behavior of cancers (measure progression or response to therapy). They can be found in bodily fluids or tissue. Markers can help with assessing prognosis, surveilling patients after surgical removal of tumors, and even predicting drug-response and monitor ...

9. New blood test shows promising results for detecting colon cancer

   www.aol.com/blood-test-shows-promising-results...

   In a study of more than 7,800 colon cancer patients, the new test from Guardant Health was able to detect the cancer with 83% sensitivity. “The idea of a blood-based test is something they’re ...