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what blood tests can detect colon cancer

A 54-year-old member asked:
Dr. Liawaty Ho
22 years experience Hematology and Oncology
Not really: The sensitivity of occult blood test is very low -about 20-25% if it is done only once. If it is done in 3 separate occasions- the sensitivity of the ... Read More
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A 52-year-old member asked:
Dr. Gurmukh Singh
48 years experience Pathology
Not optimal: Occult blood in stool (fobt) are helpful in detecting colon cancer and their use improves outcomes. However, fobt by itself is not a treatment theref ... Read More
A 44-year-old member asked:
Dr. Scott Welker
26 years experience General Surgery
Establishes baseline: You will almost certainly have normal liver functions, blood counts, and CEA at present, but these will be monitored into the future. Any change can ... Read More
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A 41-year-old female asked:
Dr. Eric Kaplan
41 years experience Colon and Rectal Surgery
Best is : To discuss with your oncologist regarding any known side effects of the chemo drugs being used. Pain could be related to your prior colon surgery also ... Read More
A 27-year-old male asked:
Dr. Charles Cattano
38 years experience Gastroenterology
Pretty low: Conventional assessment of colorectal cancer (CRC) risk largely involves detection of non-dysplastic adenomatous polyps. Standardized sensitivity was ... Read More
A 46-year-old member asked:
Dr. Gurmukh Singh
48 years experience Pathology
No good test: There is no good blood test for either constipation or colon cancer. In late colon cancer CEA levels are usually elevated, but there are other causes ... Read More
A 28-year-old male asked:
Dr. Elvira Klause
27 years experience General Surgery
Possibly hemorrhoids: most rectal bleed is usually from hemorrhoids, cancer is extremely rare especially at this age, but needs to be ruled out, therefore a specialist eith ... Read More
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A 26-year-old female asked:
Dr. Mark Pack
Dr. Mark Pack answered
30 years experience General Surgery
????: At age 20, it is unlikely you have colon cancer. It is not necessarily impossible, but why do you think you have colon cancer. Do you have anxiety iss ... Read More
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A 55-year-old male asked:
Dr. Robert Kneece
Specializes in Internal Medicine and Pediatrics
Maybe: Not all the time because you may only have intermediate blood.The best test is a colonoscopy.
A 46-year-old member asked:
Dr. Carlos Encarnacion
34 years experience Medical Oncology
Depends: A blood count may show anemia than can in turn be traced to a cancer anywhere in the GI tract. Also, if the cancer is advanced, tumor markers or liver ... Read More

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