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Tartrate-Resistant Acid Phosphatase, Cytochemical Stain Only
2013275
Ordering Recommendation

Use to identify hairy cell leukemia.

Mnemonic
TRAP SO
Methodology
Cytochemical Stain
Performed
Mon-Fri
Reported
2-5 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Lavender (EDTA), Green (Lithium Heparin), or Green (Sodium Heparin). Also acceptable: Heparinized Bone Marrow Aspirate. 
Specimen Preparation
Transport 6 unfixed, air-dried, and unstained push smears AND 5 mL whole blood (smears should be made from the blood submitted). OR transport 6 unfixed, air-dried, and unstained bone marrow aspirate smears. Protect from light. 
Storage/Transport Temperature
Room temperature. Blood specimens must be received within 24 hours of collection; testing must be performed within 48 hours of collection. 
Unacceptable Conditions
Peripheral blood smears older than one year. Anticoagulated blood or bone marrow sent without well-prepared unfixed smears if greater than 48 hours. 
Remarks
 
Stability
Ambient: 24 hours; Refrigerated: Unacceptable; Frozen: Unacceptable 
Reference Interval
Interpretive Data


Note
Further information on how to make an adequate slide, in the form of an instructional video, can be found at: https://www.youtube.com/watch?v=ca3NwrlpS40&feature=youtube
Components
Component Test Code*Component Chart NameLOINC
2013276TRAP Cytochem Stain Only
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • Hairy Cell Leukemia (HCL) stain and return
  • TRAP
  • Trap Stain (technical only)