Collect	one lavender top (EDTA) tube of peripheral blood
	Minimum Volume	4mL peripheral blood
	Remarks	This test includes analysis of granulocytes for the presence of GPI-AP protein ( CD55, CD59, CD66b, and CD16). Bone marrow specimens are not reliable, thus, bone marrow samples will be rejected.
	Notes	All specimens must have two forms of patient identification on them and be accompanied by a Flow Cytometry Requisition that includes the patient name, medical record number, source of specimen and the submitting physician’s name. An adequate clinical history including pertinent lab findings is essential. Missing information may result in a delay of the pathology report. Submit all specimens including night and weekend specimens to Central Processing.

88184, 88185, 88187 *The CPT codes provided are based on the AMA guidelines and for informational purposes