Complement C3
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CRP
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The Complement C4 blood test measures the level of complement component C4 in the blood. Complement C4 is a protein involved in the immune system’s response to infections and inflammation.
Sample Type: The test requires a small blood sample, typically obtained by drawing blood from a vein in your arm using a needle.
Normal Range: The normal range for Complement C4 levels can vary depending on the specific laboratory and the reference values they use. Generally, the normal range is around 10 to 40 milligrams per deciliter (mg/dL).
The Complement C4 blood test is often used to evaluate and monitor certain immune system disorders, such as systemic lupus erythematosus (SLE), rheumatoid arthritis, and other autoimmune diseases. In these conditions, the complement system, which includes complement C4, can be overactive or dysfunctional, leading to inflammation and tissue damage.
Elevated levels of Complement C4 can indicate ongoing inflammation or activation of the complement system. Decreased levels, on the other hand, may suggest complement consumption or dysfunction.
It’s important to note that the interpretation of Complement C4 test results should be done in the context of the individual’s specific medical condition and in conjunction with other clinical findings. The Complement C4 test is often used alongside other complement component tests, such as Complement C3, to provide a more comprehensive assessment of complement system activity.
If you have concerns about your Complement C4 levels or immune system function, it’s recommended to consult with a healthcare professional for proper interpretation of your test results and to discuss any necessary steps or treatments based on the findings.
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