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A member asked:
Why would my dr be testing my c3 and c4? is it looking for an autoimmune disease?
2 doctors weighed in across 2 answers
See details: From the description of your symptoms, I am not certain why the tests were ordered. C3 and C4 can be markers for kidney involvement in lupus, certain types of vasculitis and in angioedema. The best approach is to ask the doctor who ordered the tests what he/she was looking for.
Answered 2/13/2015
4.7k views
Yes: Complement levels may be depressed in many autoimmune diseases but most commonly in lupus. You need to have a frank discussion with your physician as to what he suspects.
Answered 9/28/2016
4.7k views
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People also searched for:
I had a complement total 50 done with c3-c4 but dr only did total ch50 and it is 60 , i also have autoimmune diseases hashimotos ,sle,ra,mctd and my crp is very very low 5 is this of concern as my dr is not sure , just said it is your autoimm?
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Rnp antibody, speckled pattern, titer of 1:320. No symptoms or anything. High complement c3 & c4 levels. do I have an autoimmune disease?
High positive ANA for years and now tested elevated complement C4 and C3 but all other autoimmune antibodies are still negative. What could that be?
Normal C-RP, Sed Rate, CBC, CMP, Rheumatoid fac., C3/C4 Complement and Cyclic Citrul peptide. ANA was negative. Does this rule out any auto-immune?
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