Leukocyte Alkaline Phosphatase , Lap

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Leukocyte Alkaline Phosphatase (LAP)
Lactate
Lactate Dehydrogenase
Lactate Dehydrogenase Isoenzymes In human hematopoietic tissue, alkaline phosphatase activity is present in neutrophil
Lactose Tolerance granulocytes, osteoblasts, vascular endothelial cells and sometimes lymphocytes. Leukocyte
LDL Cholesterol alkaline phosphatase (LAP) activity in the neutrophils varies widely in activity in different
Lead hematological and non-hematological disorders, and may be helpful diagnostically.
Lecithin Sphingomyelin Ratio
Legionella Direct Fluorescent Antibody Assessment of LAP activity in the neutrophils is most useful in differentiating chronic myeloid
Legionella Tests leukemia (CML), where it is typically decreased, from granulocytic leukemoid reactions, where
Leukemia Lymphoma Panel by Flow it is typically increased. In CML, about 90% of cases show decreased LAP activity. When the
Cytometry disease is in remission, the LAP score may become normal; when CML is in blast crisis, LAP
Leukocyte Alkaline Phosphatase activity is often normal or increased.
Leukocyte Antibody
Leukocytosis and Thrombosis LAP activity in the neutrophils is usually increased in polycythemia vera, whereas it is normal in
Lipase secondary polycythemia. The LAP score is variable in the other myeloproliferative disorders
Lipid Panel such as essential thrombocythemia and agnogenic myeloid metaplasia.
Lipid Variability
Lipoprint LDL Subfractions Low LAP activity is not unique to CML, but may also be found in diseases such as paroxysmal
Lipoprotein a Cholesterol nocturnal hemoglobinuria (PNH), sickle cell anemia and sideroblastic anemia. High LAP activity
Lithium is frequently seen in bacterial infections, pregnancy, and in patients receiving corticosteroids.
Lupus Anticoagulant Panel
Luteinizing Hormone Reference value is 20 - 137.
Lyme Disease Serology
Specimen requirement is one 10 mL green top (heparin) tube or 4 well made peripheral blood
smears. All slides should be air-dried, unfixed, and unstained.
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