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A member asked:
Sle dx. c3 is always low for years. c4 has never been low. i realize sle diagnosis is more complicated but aren't both complements usually low in sle?
A doctor has provided 1 answer
No: Serum complements are usually normal in lupus. The are often low in individuals with skin or kidney involvement but may also be low without an apparent underlying cause.
Answered 5/3/2014
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