Measures the blood level of Complement 3 protein, a key part of the immune system.
The Complement 3 (C3) test assesses the amount of C3 protein in the blood, which plays a vital role in the body’s immune defense by enhancing the ability to clear microbes and damaged cells. It helps diagnose autoimmune disorders, recurrent infections, and monitor certain inflammatory conditions. Low levels may indicate autoimmune diseases such as lupus, while high levels may suggest inflammation or infection.
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Overview:
The Complement 3 (C3) test measures the level of C3 protein in the blood. C3 is a key component of the complement system, which helps the immune system fight infections and remove damaged cells. Abnormal C3 levels may indicate autoimmune diseases, infections, or certain kidney disorders.
Risk Assessment:
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Low C3 levels may suggest autoimmune conditions (e.g., systemic lupus erythematosus), chronic infections, or kidney diseases such as glomerulonephritis.
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High C3 levels may be seen in acute inflammation, infections, or certain cancers.
Normal Range:
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Adults: 90–180 mg/dL (may vary slightly by lab).
Interpretation:
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Decreased C3: Possible immune complex diseases, recurrent bacterial infections, or complement consumption disorders.
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Increased C3: Often linked to acute-phase inflammatory response or obesity-related metabolic syndrome.
Sample Type:
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Serum (blood sample).
Frequently Asked Question
Complement 3 (C3) test
Measures the blood level of Complement 3 protein, a key part of the immune system.
The Complement 3 (C3) test assesses the amount of C3 protein in the blood, which plays a vital role in the body’s immune defense by enhancing the ability to clear microbes and damaged cells. It helps diagnose autoimmune disorders, recurrent infections, and monitor certain inflammatory conditions. Low levels may indicate autoimmune diseases such as lupus, while high levels may suggest inflammation or infection.
Covid Safety
Assured
Free Report
Counselling