PLATELET ANTIBODY, DIRECT, BLOOD
Flow Cytometry
	Test Performed At:
		American Red Cross
	Specimen Required:
	SPECIMEN MUST ARRIVE WITHIN 24 HOURS OF DRAW.
		Draw blood in a lavender-top (EDTA) tube(s). If platelet count is >50,000 K/cumm send 10 mL of EDTA whole blood. If platelet count is 20-50 K/cumm send 20 mL of EDTA whole blood. If platelet count is <20 K/cumm send 30 mL of EDTA whole blood.
	Laboratory Notes:
		None
	Reference Values:
		1.6-7.2 fg/platelet
		An interpretive report will be provided. The direct test detects IgG on the patient’s platelets. Positive results may occur in collagen-vascular and hematologic lymphoma and lymphocytic leukemia. It may also occur with drug-induced thrombocytopenia, acute idiopathic thrombocytopenia purpura, and in post-transfusion purpura. Occasionally, positive results may be seen in healthy individuals.
	Day(s) Test Set Up:
		Wednesday
	Cut-Off Time:
	Turn Around Time:
		24 hours from test date
	CPT Code:
		86022
	Care Manager Order Name:
		Platelet Antibodies, Direct ONCE RTN
	KIDDOS Order Name:
		Platelet Antibodies Direct
	Cerner Order Name:
		Plt Ab Direct

 Last updated 06/09