Collect:Peripheral blood in lavender (EDTA), pink (K2EDTA), or green (sodium or lithium heparin). OR heparinized bone marrow aspirate. OR paraffin block.
Specimen Preparation:Peripheral Blood: Protect from light. Transport 1 mL whole blood AND six unfixed smears. OR Bone Marrow: Protect from light. Transport 0.5-1 mL heparinized aspirate AND six unfixed smears. OR Paraffinblock: Protect from excessive heat. Transport block or 4 unstained paraffin slides cut at 4 microns.
Storage/Transport Temperature:All specimens: Room temperature. Peripheral Blood: Must be received within 24 hours of collection; testing must be performed within 48 hours of collection. Paraffinblock: Ship in cooled containers during summer months.
Stability (collection to initiation of testing):Blood/Bone Marrow: Ambient: 24 hours Paraffin Block: Indefinitely
Reference Interval:
By report
CPT Code(s):
88319
Cross References:
Chloroacetate Stain (Esterase Stain, Specific), Leder Stain (Esterase Stain, Specific), Specific Esterase Stain (Esterase Stain, Specific)
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