A 27-year-old female asked:
Disclaimer

normal c4, low c3? do i have lupus? dont have other lupus symptoms. rheumatologist diagnosed me with raynauds before c tests. but no feedback or call after receiving the blood results. i received a copy. are there other autoimmune illnesses?

1 doctor answer
Dr. Gurmukh Singh
48 years experience Pathology
Need more info: One or two issues are not sufficient for a diagnosis of lupus. Visit this site for diagnostic criteria for lupus and then discuss the matter with your doctor. There are many other autoimmune disorders but there is not sufficient space here to explain. https://www.lupusresearch.org/understanding-lupus/diagnosis-and-treatment/diagnosis/ Wish you good health!
Answered on Oct 23, 2018
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A 30-year-old female asked:
Dr. Ed Friedlander
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No single test: C3 is low more often than C4 in lupus but both can be normal. It is a diagnosis made on checklist -- point count. Best wishes.
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A 21-year-old male asked:
Dr. Joram Seggev
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Disease activity: I assume that the diagnosis of sLE has been confirmed. The concentration of C4 is much lower than C3. As C4 is ow normal, there is no deficiency. When ... Read More
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Dr. David Greenfield
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No: High C3 is not expected in lupus. More likely it could be normal or low. CPK is high in some connective tissue diseases such as poly myosotis, dermato ... Read More
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