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anyone have low c3/c4 proteins?

Discussion in 'Diagnostic Guidelines and Laboratory Testing' started by uni, Jun 30, 2012.

  1. uni

    uni

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    One of the test results that always comes up a little low is my complement c3 protein, and also c4 protein (once). I'm wondering if anyone else has this result?
  2. maryb

    maryb Senior Member

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    UK
    I'll know soon just had c3 levels tested. I'll post result.
  3. Ema

    Ema Senior Member

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    Complement proteins are blood proteins that can help control inflammation. Low levels might indicate a chronic inflammatory disease of the immune system. However, this can be a relatively common finding and is used as a part of a diagnostic workup. By itself, I'm not sure it says much of anything definitively but may perhaps point in a direction for further testing and investigations.

    http://labtestsonline.org/understanding/analytes/complement-levels/tab/test

    Some doctors are also looking at C3a and C4a complement proteins but this testing is more difficult and only a few labs are able to do it properly.

    http://conqueringthechallenge.blogspot.com/2010/06/when-complement-is-not-compliment-role.html

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