C3 Nephritic Factor [10287X]

Test Code

137182

CPT Codes
86161

Preferred Specimen

1 mL serum collected in a red-top tube (no gel)

Minimum Volume

0.25 mL (pediatric: 0.25 mL)

Instructions

Allow blood to clot at room temp or 37° C for 20 to 60 minutes. Centrifuge to thoroughly remove cells and immediately transfer cell-free serum to a fresh tube and freeze the cell-free serum on dry ice or at -70° C.

Transport Temperature

Frozen

Specimen Stability

Room temperature: Unacceptable
Refrigerated: Unacceptable
Frozen -70° C: 1 year

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Gel barrier tubes • Thawed specimen

Methodology
Immunofixation Electrophoresis (IFE)

FDA Status
This assay is used for clinical purposes and was developed, and its performance characteristics determined by Advanced Diagnostic Laboratories at National Jewish Health. It has not been cleared or approved by the US Food and Drug Administration. The FDA has determined that such clearance or approval is not necessary. This laboratory is certified under the Clinical Laboratory Improvement Amendments of 1988 (CLIA-88) as qualified to perform high complexity clinical laboratory testing.

Setup Schedule

Set up: Tues; Report available: 14 days

Reference Range

0.00-0.33 ratio

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.