anyone have low c3/c4 proteins?

[uni]

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?

 

[maryb]

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

 

[Ema]

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