blood chemistry measurement blood enzyme activity level blood alkaline phosphatase activity level 2011-11-02T04:10:38Z CMO:0000576 EFO:0004533 Quantitation of the catalytic effect exerted by alkaline phosphatase (AP) in a specified sample of blood. AP is an enzyme that catalyzes the cleavage of orthophosphate from orthophosphoric monoesters under alkaline conditions. VT:0000202 alkaline phosphatase measurement clinical_measurement_ontology mshimoyama