What blood test can be used to screen for colon cancer?

Does colon cancer show up in bloodwork?

No blood test can tell you if you have colon cancer. But your doctor may test your blood for clues about your overall health, such as kidney and liver function tests. Your doctor may also test your blood for a chemical sometimes produced by colon cancers (carcinoembryonic antigen, or CEA).

What lab work shows colon cancer?

Currently, colorectal cancer is usually found through such tests as FOBT, colonoscopy, sigmoidoscopy, barium enema, or stool test.

How do you screen for colon cancer?

Colonoscopy. A colonoscopy is a simple and safe procedure in which your doctor uses a long tube with a light and camera to detect polyps. Polyps can be removed during the procedure if found. This is the standard test for colorectal cancer screening.

Is there a blood test for colon?

Your doctor may recommend a fecal occult blood test (FOBT) to screen for colon cancer. FOBT is a test that checks the stool (solid waste) for blood, using a microscope. A small sample of stool is placed on a special card or in a special container and returned to the doctor or laboratory for testing.

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What was your first colon cancer symptom?

Diarrhea, constipation, or feeling that the bowel does not empty completely. General abdominal discomfort, such as frequent gas pains, bloating, fullness and/or cramps. Constant feeling of fatigue or tiredness. New onset anemia diagnosed on routine lab work.

What is the most accurate test for colon cancer?

There’s no debate that colonoscopy is still the most effective screening exam for colon cancer. The first-rate exam not only detects colon cancers with about 98% accuracy, but it also allows doctors to remove precancerous and cancerous polyps during the procedure.

Can you see colon cancer on a CT scan?

Computed tomography (CT or CAT) scan

This test can help tell if colorectal cancer has spread to nearby lymph nodes or to your liver, lungs, or other organs.

At what stage does colon cancer show symptoms?

Colorectal cancer symptoms may be minor or non-existent during the early stages of the disease, although there may be some early warning signs. The symptoms of colorectal cancer may not develop until the disease has progressed into stage 2 or beyond.

How often should you screen for colon cancer?

The doctor checks for polyps or cancer inside the rectum and lower third of the colon. How often: Every 5 years, or every 10 years with a FIT every year.

When should you start getting screened for colon cancer?

Regular screening, beginning at age 45, is the key to preventing colorectal cancer and finding it early. The U.S. Preventive Services Task Force (USPSTF) recommends that adults age 45 to 75 be screened for colorectal cancer. The Task Force recommends that adults age 76 to 85 ask their doctor if they should be screened.

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