This site is intended for healthcare professionals

Sign in
Go to /sign-in page

You can view 5 more pages before signing in

Leucocyte alkaline phosphatase (LAP)

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Leukocyte alkalline phosphatase (LAP) (neutrophil alkaline phosphatase)

  • is an enzyme present in normal neutrophils, but absent (or present at very low concentrations) in malignant neutrophils (e.g. in chronic myeloid leukaemia)
    • means that if the neutrophil count is raised, and the LAP is strongly positive in these cells, then it suggests the increase in neutrophil count is from a non malignant cause

Reference range

  • 20-180 per 100 score neutrophils

Note that reference ranges may vary between laboratories

Related pages

Create an account to add page annotations

Create a free account

Add information to this page that would be handy to have on hand during a consultation, such as a web address or phone number. This information will always be displayed when you visit this page

The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

Connect

Copyright 2024 Oxbridge Solutions Limited, a subsidiary of OmniaMed Communications Limited. All rights reserved. Any distribution or duplication of the information contained herein is strictly prohibited. Oxbridge Solutions receives funding from advertising but maintains editorial independence.