A 33-year-old member asked:
What could high immunoglobulin ig m and complement c4 mean?
1 doctor answer • 3 doctors weighed in

Dr. Joram Seggevanswered
Specializes in Internal Medicine - Allergy & Immunology
May be significant: Immunogloblin m (igm) is one of the 5 classes of proteins that have antibodies. C4 is part of the complement cascade, a series of proteins that are important in immunity and inflammation. Elevation of both may occur in various diseases. The significance of the specific values for you depends on what your clinical problem is. Therefore, i can not be more specific as to what it means for you.
Created for people with ongoing healthcare needs but benefits everyone.
5.6k viewsReviewed >2 years ago
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A 36-year-old member asked:
What does high immunoglobulin IG m and complement mean?
1 doctor answer • 3 doctors weighed in

Dr. Gary Stevenanswered
Pediatric Allergy and Asthma 32 years experience
Depends: The "normal ranges" for all lab tests include 95% of the "normal" population; thus, 2.5% of people are above the upper limit, and 2.5% are below the lower limit. There's nothing to worry about if your values are a little bit above the normal range, but a very elevated IgM could be a sign of a problem. You need to check with the physician who ordered the tests to interpret your results.
Created for people with ongoing healthcare needs but benefits everyone.
5.8k viewsReviewed >2 years ago
Last updated Jun 28, 2020
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