C4 Blood Test
C4 Blood Test FAQ
What is a C4 blood test?
Why is a C4 blood test important?
What type of specimen will I submit?
Do I need to fast to take this test?
How long does it take to get test results?
Accesa Labs does not provide medical advice, diagnosis or treatment. All users should consult with a medical provider for specific health concerns.
C4 Blood Test for $119
C4 Test - More Information
The C4 blood test, also known as a C4 lab test and a complement component C4c test, measures the C4 blood level.
Complement C4 is a part of a portion of the immune system known as the complement system. Abnormal levels of C4 can be associated with autoimmune conditions like glomerulonephritis, systemic lupus erythematosis (SLE), cryoglobulinemia, or another autoimmune condition. To get a C4 blood test near you, just order online and get your blood drawn at the selected Quest Diagnostics location. Once your C4 lab report is ready, it will be available for download. As can be seen on the sample C4 lab report above, the C4 blood levels are reported as a number and can be compared against the reference ranges provided by the lab.
The complement C4 lab test is part of the lupus test panel.
- A doctor's lab order*
- 24 / 7 order processing
- Access to 1000+ Quest labs
- All lab test fees
- A PDF copy of your test results
- Responsive customer service