Short Name: LAP
Sample required: Plasma
Result Time: 1 Days
The leukocyte alkaine phosphatase (LAP) score is often used in patients with an elevated WBC to differentiate a reactive process from chronic myelogenous leukemia. The score in the latter is low while it is within the normal reference range or elevated in the former condition. LAP is usually HIGH in Polycythemia vera and Myelofibrosis and DECREASED with chronic granulocytic leukemia.