Collect	PPT
	Also Acceptable	Lavender (EDTA) Pink (K2EDTA) Gold / SST
	Transport	Critical Frozen
	Minimum Volume	3 mL
	Remarks	Specimens collected in a PPT should be submitted in the original container. Separate specimens must be submitted when multiple tests are ordered. Serum or plasma must be separated from cells within four hours.
	Notes	Stability: Plasma or serum once removed from cells (within four hours) can be refrigerated and frozen as follows: Refrigerated: 24 hours; Frozen: 4 months. This assay should not be used for blood donor screening, associated re-entry protocols, or for screening Human Cell, Tissues and Cellular Tissue-Based Products (HCT/P).

87517 *The CPT codes provided are based on the AMA guidelines and for informational purposes