| Methodology: |
Enzymatic
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| Performed: |
Mon-Fri
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| Reported: |
Between 1 and 4 days
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| Specimen Required: |
Collect: One 4 mL serum separator tube, one 3 mL lavender (EDTA), pink (K2EDTA), or green (sodium or lithium heparin).
Storage/Transport Temperature: 0.5 mL serum or plasma at 2-8°C. (Min: 0.1 mL)
Remarks: Allow specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP. Sample must be drawn prior to surgery or more than two days following surgery. Do not draw in recovery room. (EDTA plasma acceptable if removed from cells ASAP.) Plasma values slightly lower than serum.
Unacceptable Conditions: Whole blood on clot and hemolyzed specimens.
Stability (collection to initiation of testing): Ambient: 4 hours; Refrigerated: 1 week; Frozen: 3 months
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