Collect	Gold / SST
	Transport	Refrigerated
	Minimum Volume	1 mL
	Remarks	Stability (collection to initiation of testing): After separation from cells: Ambient: 48 hours; Refrigerated: 72 hours; Frozen: 1 month
	Notes	This assay measures total tryptase and does not distinguish between the alpha and beta protein types. Samples should preferably be collected between 15 minutes and three hours after the suspected event causing mast cell activation.

83520 *The CPT codes provided are based on the AMA guidelines and for informational purposes