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A member asked:

My 14 yr. old daughter has a high ch50 level (lab work just says >60) with borderline low c4 (16) and normal c3(102) should i be concerned?

A doctor has provided 1 answer

Ordering doc?: Hi. I assume it was a hematologist, infectious disease, rheumatologist, or nephrologist who ordered these complement tests. What is the condition they were ordered for in the evaluation of? We need much more information; we're not here to make wild assumptions. Information, please. Good luck!

Answered 12/9/2014

3.5k views

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A member asked:

Can you have a normal ch50 (total complement) blood test result, but still have low C3 and/or C4 levels?...Or would low C3 or C4 show up on ch50 test?

4 doctors weighed in across 2 answers

A member asked:

Ive had chronic hives and a flare up last week so my allergist did a blood work up. My CH50 is elevated, but normal C3 C4 and normal for others. Any significance with CH50 and chronic hives?

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