Complement Activity, Total (CH50) CH50TT
| Method(s) | Semi-Quantitative Enzyme Linked Immunosorbent Assay | ||||||
|---|---|---|---|---|---|---|---|
| Specimen Required | |||||||
| Collect | One 6 mL plain red top tube. Allow to clot for one hour at room temperature. |
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| Transport | 1 mL serum, frozen (Min: 0.5 mL) |
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| Remarks | CRITICAL FROZEN. Separate samples must be submitted when multiple tests are ordered. Allow to clot for one hour at room temperature. Separate serum from cells ASAP or within 2 hours of collection and freeze. |
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| Stability | After separation from cells: Ambient: Unacceptable; Refrigerated: Unacceptable; Frozen: 1 month |
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| Unacceptable Conditions | Samples left to clot at 2-8°C. Samples subjected to repeated freeze/thaw cycles. Samples collected in separator tubes. Nonfrozen samples. |
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| Schedule | Daily | ||||||
| Billing Code | 5011914 | ||||||
| CPTCode | 86162 | ||||||
| Preferred Specimen Collection Device(s) | |||||||
| Reference Interval | |||||||
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