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Myeloperoxidase Stain
0049030
Ordering Recommendation

Determine myeloid lineage in AML per WHO classification. Less sensitive and specific than flow cytometry immunophenotype.

Mnemonic
MY PEROX
Methodology
Cytochemical Stain
Performed
Mon-Fri
Reported
Within 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) or green (sodium or lithium heparin) or heparinized aspirate of bone marrow.  
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 6 unfixed, air-dried, and unstained bone marrow aspirate smears.  
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
Frozen specimens. Peripheral blood smears older than one week. Anticoagulated blood or bone marrow sent without well-prepared unfixed smears if greater than 48 hours old.  
Remarks
 
Stability
Ambient: 24 hours; Refrigerated: Unacceptable; Frozen: Unacceptable  
Reference Interval
Interpretive Data
Refer to report.


Note
CPT Code(s)
88319
Components
Component Test Code*Component Chart NameLOINC
0049030Myeloperoxidase Stain32817-9
* 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
  • MPO
  • MPO Stain
  • Peroxidase Stain