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Test Code C3 C3 Complement, LAB152

Methodology

Turbidimetry

Specimen Requirements

Container/Tube:

Preferred: Gold-top serum gel tube or plain, red top tube

Specimen Volume:  0.5 mL of serum

Stability:  Samples may be stored at 2-8°C for up to 3 days, but for prolonged storage they

                  should be kept frozen at -20°C or below for up to 8 days.  Do not freeze and

                  thaw serum more than once.

Collection Instructions: Sample should be allowed to completely clot before centrifugation.

Reference Values

81 - 157 mg/dL

Day(s) Test Set Up

Monday & Thursday

Test Classification and CPT Coding

86160

Performing Laboratory

St. Luke's Hospital Cedar Rapids

Useful For

C3c is the major protein component of the complement system, and has a fundamental role in the inflammatory response and immune system functionality.  C3c is produced in the liver, and accordingly reduced complement activity is associated with severe liver failure.