Methodology: Radioimmunoassay
Performed: Mon-Sat
Reported: 1-3 days

Specimen Required:
Collect: One 4 mL gold or red SST.
Transport: 1 mL serum, frozen. (Min: 0.5 mL)
Remarks: CRITICAL FROZEN.  Separate samples must be submitted when multiple tests are ordered.  Ten-hour fasting recommended.
Unacceptable Conditions: Plasma and nonfrozen samples.
Stability: After separation from cells: Ambient: 2 hours; Refrigerated: Unacceptable; Frozen: 1 month

CPT Code: 82941