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A member asked:

Is it normal to have low c3&c4 serum? i had a positive ana over five years ago also. now just have low c3&4. should i be worried? i have felt sick. ty

A doctor has provided 1 answer
Dr. John Chiu answered

You'd be: If you feel sick for a long time, you'd be worried. A low C3 & C4 especially in the presence of high ANA titer may point to an active autoimmune process. See a rheumatologist.

Answered 4/27/2015

2.9k views

Thank

Related Questions

A member asked:

Diagnosed w/lupus 10 years ago &have been on plaqunenil. For past 6 years, my SED rate, c3, c4, and crp have been normal.my double stranded dna has been always negative. I have Ana 1:640 and other qualifying symptoms. Do I no longer have lupus ?

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Do serum complement levels naturally fluctuate? had one mildly low C4 with normal C3 but when test redone both had risen & C4 was within normal range

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What does it mean if my complement C3 serum was 4 points low on a scale of 90-180 and my C4 was normal? Could there be something wrong?

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What is the significance of having low serum levels of kappa and lambda free light chains? I had high ch50 and normal C3 and c4.

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I have normal levels of complement C2 and c4. C3 level is low. Ch50 is high-normal(57 u/ml)-(all are serum tests)-what are the possible causes?

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