Collect: Plasma preparation tube or serum separator tube.
Specimen Preparation: Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.2 mL)
Storage/Transport Temperature: Refrigerated.
Unacceptable Conditions: Specimens collected in potassium oxalate or sodium fluoride. Grossly hemolyzed specimens.
Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 1 week; Frozen: 1 month
Reference Interval:
Male 0-19 years: By report 20 years and older: 20-200 U/L
Female 0-19 years: By report 20 years and older: 20-180 U/L
