Low LAP/NAP score may be seen in the following except
Causes of decreased LAP score are:

CML.
PNH.
Myelodysplastic syndromes.
Rare infections.

Causes of raised LAP score are:

Leukemoid reaction.
Infections.
Pregnancy.
Inflammatory disorder.
Stress.
Drugs like lithium.
Growth factor therapy.
CML
PNH
AIHA
Pregnancy