| Methodology: |
Cytochemical Stain
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| Performed: |
Mon-Fri
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| Reported: |
Within 5 days
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| Specimen Required: |
Collect: Lavender (EDTA) or green (sodium or lithium heparin). OR heparinized bone marrow aspirate.
Specimen Preparation: Blood: Protect from light. Transport 5 mL whole blood AND 6 unfixed, air-dried, and unstained push smears made from the blood submitted. (Min: 1 mL AND 6 unfixed smears).
OR Bone Marrow: Protect from light. Transport 1 mL heparinized aspirate AND 6 unfixed, air-dried, and unstained bone marrow aspirate smears. (Min: 0.5 mL AND 6 unfixed smears).
Storage/Transport Temperature: Room temperature. Specimens should be received within 24 hours of collection; testing must be performed within 48 hours of collection.
Unacceptable Conditions: Frozen specimens. Peripheral blood smears older than one year. Anticoagulated blood or bone marrow sent without well-prepared unfixed smears older than 48 hours.
Stability (collection to initiation of testing): Ambient: 48 hours; Refrigerated: Unacceptable; Frozen: Unacceptable
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