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C3a desArg Fragment
Test Code17689X
CPT Codes
86161
Preferred Specimen
1 mL (x2) frozen plasma collected in EDTA (lavender-top) tubes
Minimum Volume
0.5 mL in each of 2 tubes
Transport Temperature
Frozen
Specimen Stability
Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen: 21 days
Refrigerated: Unacceptable
Frozen: 21 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Received room temperature • Received refrigerated
Methodology
Enzyme Immunoassay (EIA)
FDA Status
This test was performed using a kit that has not been cleared or approved by the FDA. The analytical performance characteristics of this test have been determined by Quest Diagnostics. This test should not be used for diagnosis without confirmation by other medically established means.
Setup Schedule
Set up: Tues; Report available: 3 days
Reference Range
55-486 ng/mL
Clinical Significance
C3a desArg is a cleavage product of C3 complement component activation. Elevated levels of C3a have been reported in patients with acute lyme disease, acute pancreatitis, systemic lupus erythematosus, and adult respiratory distress syndrome.
Performing Laboratory
Quest Diagnostics Nichols Institute
33608 Ortega Highway
San Juan Capistrano, CA 92690-6130