C3 Nephritic Factor
| Abbrev Code: | C3NEF | ||
| Order Code: | LAB6265 | Order Name: | Complement C3 Nephritic Factor |
| Methodology: | Immunofixation electrophoresis | ||
| CPT Codes: | 86161 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Thur; results are reported within 14 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2 mL |
| Minimum\Peds Volume: | 0.7 mL |
| Container: | Red (no gel) |
| Causes for Rejection: | Thawed specimen. Samples stored at -20°C. Gel barrier tubes are not acceptable. |
Processing and Shipping
| Specimen Processing: | Allow specimen to clot at room temperature for 20-60 minutes. Centrifuge and aliquot 1 mL, 0.25 mL minimum within 2 hours of collection or ASAP. Store on dry ice or at -70°C. |
| Shipping Instructions: | Ship on dry ice. |
| Stability: | 1 year if frozen at -70°C. |
| Test Performed at or Referral Lab | Lab Sendouts (National Jewish Health) |
| Referral Lab number: | C3NF |
Interpretive
| Reference Range: |
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| Use: | This is not a direct measurement of antibody quality, but only a qualitative (indirect) measure of its activity in causing C3 conversion. |
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