Complement Activity Total (CH50)
| Abbrev Code: | CH50AT | ||
| Order Code: | LAB8222 | Order Name: | Complement Activity Total (CH50) |
| Synonyms: | Complement Activity Enzyme Immunoassay, Total; CH50T | ||
| Methodology: | Immunoturbidimetry | ||
| CPT Codes: | 86162 x1 | ||
| Turnaround Time: | Specimens are sent to reference laboratory Mon-Sat; results are reported in 1-2 days. | ||
Collection Instructions
| Specimen: | Blood |
| Optimal Volume: | 2 mL |
| Minimum\Peds Volume: | 1.2 mL |
| Container: | Red (no gel) |
| Causes for Rejection: | Serum separator tubes. Specimens left to clot at 2-8°C. Room temperature or refrigerated specimens. Specimens repeatedly thawed and frozen. Grossly hemolyzed or severely lipemic specimens. |
Processing and Shipping
| Specimen Processing: | Allow specimen to clot 60 minutes at room temperature. Centrifuge and aliquot 1 mL, 0.5 mL minimum and freeze within 2 hours. Store in freezer. |
| Shipping Instructions: | Ship on dry ice. CRITICAL FROZEN. Separate specimens must be submitted when multiple tests are ordered. |
| Stability: | After separation from cells: 1 month frozen. |
| Test Performed at or Referral Lab | Lab Sendouts (ARUP) |
| Referral Lab number: | 3002575 |
Interpretive
| Reference Range: |
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