Leukocyte Alkaline Phosphatase

Method Name

Reference Laboratory


Leukocyte Alkaline Phosphatase; LAP, LAP

Specimen Required

Prepare smears on six (frosted end) slides from either fingerstick blood or immediately after drawing into heparin vacutainer and mixing. Air dry the slides and label with patient’s name. Submit all. Note: Do not use EDTA anticoagulant. Do not fix sli

Specimen Minimum Volume

2 freshly made blood smears

Specimen Stability Information

Deliver to the Laboratory with 12 hours of collection. Smears are stable at room temperature for up to 7 days.

Performing Laboratory

Monday – Friday. Turn around time is 3-7 days.

Reference Values

25 – 130