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Thread: GI question

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    Rossgrad2011 is offline Junior Member 510 points
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    GI question

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    42 y/o AA male with PMHx of HTN, DM visits his PCP for annual checkup. Pt has a CEA level elevated at 7.3 (nml ~3). Which of the following is the most common cause of this elevation?
    1. Colonic Polyp
    2. Colorectal CA
    3. Active Smoker
    4. Diabetic Nephropathy
    5. Hypercholestermia


    Another question: Why is CEA level usually drawn? (i will provide the answer after a few responses)
































    Answer: 3. Chronic Smokers and COPD pts have a slight elevation in CEA levels. Pt's age and history given doesnt indicate risk of Colon ca or polyps.

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    RussianJoo is offline Ultimate Member
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    well it's interesting that smoking elevates your CEA, however, i would probably pick Colon CA and would be wrong. I think you start at 50 to have prophylactic colonoscopies so maybe that's why he had a CEA drawn? but yeah I think that's a bad question and CEA aren't just randomly drawn unless they suspect something, an much cheaper test to suspect colon ca would be a fecal occult test. but then again i guess it's important to know that smoking can cause a false elevation in your CEA which is what this question is trying to teach.

    thanks for the post.
    Hollywood Upstairs School of Medicology, Class of 2010
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  3. #3
    Rossgrad2011 is offline Junior Member 510 points
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    the only real use of CEA is preop to draw a level of max baseline and post op for low baseline in pts to f/u for recurrence of CA after CA resection...

    CEA can also be used in pts where suspicion of malignancy is high and the
    standard gold screens are negative...

    please comment if anyone disagrees...

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