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immunology
Complement C3
C3· also: Complement C3
Clinical Overview
C3 is the most abundant complement protein. Low C3 suggests complement consumption in active autoimmune disease (especially lupus nephritis) or genetic C3 deficiency.
Reference RangesWHO/IFCC standards
| Age Group | Reference Range | Unit | Notes |
|---|---|---|---|
| Adults (18–64) | 90 – 180 | mg/dL | — |
Also reported in: g/L.
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Related Topics
autoimmunelupuscomplement system