Leukocyte Alkaline Phosphatase
0049000
 
Anatomic Pathology Test Request Form Recommended (ARUP form #32960)Anatomic Pathology Test Request Form Recommended (ARUP form #32960)
Ordering Recommendation
Mnemonic
LAP
Methodology
Cytochemical Stain
Performed
Mon-Fri
Reported
1-5 days
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
 
Collect
Green (sodium or lithium heparin).  
Specimen Preparation
Protect from light and pack accordingly to avoid breakage. Transport 5 mL whole blood (Min: 1 mL) AND 6 unfixed, well-prepared smears (Min: 6 smears)  
Storage/Transport Temperature
Room temperature. Send Sunday through Thursday only. Whole blood must be received within 24 hours of collection; smears must be made within 24 hours of collection and received within 7 days of collection.  
Unacceptable Conditions
Specimens collected in EDTA. Poorly prepared smears (too thick or no feather edge). Broken or fixed smears. Specimens that have been spun. Smears made from anything other than heparin. Smears made from blood older than 24 hours  
Remarks
 
Stability
Blood: Ambient: 24 hours; Refrigerated: Unacceptable; Frozen: Unacceptable
Unfixed Smears:
Ambient: 1 week; Refrigerated: Unacceptable; Frozen: Unacceptable  
Reference Interval
Female: 33-149 (no units)
Male: 22-124 (no units)
Interpretive Data
Note
CPT Code(s)
85540
Components
Component Test Code*Component Chart Name
0049000Leukocyte Alkaline Phosphatase
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, contact interface support at interface.support@aruplab.com.
Cross References
  • LAP