One 4 mL lavender top tube (EDTA), or 2-3 blood or bone marrow slides.
Handling:
Protect blood from light by wrapping tube in foil. Send slides in a slide folder or wrap in heavy cardboard and tape closed. Send to PeaceHealth Laboratories within 24 hours for optimum staining.
Standard Volume:
4 mL EDTA whole blood, or 3 slides.
Minimum Volume:
0.5 mL EDTA whole blood, or 1 slide.
Transport:
Whole blood refrigerated; slides ambient.
Comments:
Include copy of hematology results including bone marrow differential, if available, to assist with pathologist interpretation. Used to detect granulocytic differentiation of immature cells in evaluation of leukemia. See also: Esterase Stain (23260).
Rejection Criteria:
Insufficient material on slides for evaluation; frozen specimen; gross hemolysis.