Test ID: Z0250
CPT code: 83915
LOINC: 1690-7
Specimen Type: Red, SST, Lav(EDTA) or green-top (heparin)
Frequency: 3 – 4 days shift
Instructions: 1 mL Serum from Red or SST or Plasma from Lav(EDTA) or green(heparin) , Ambient. Min 0.2 mL.
Text: Used to investigate the origin of increased serum alkaline phosphatase. It is a liver-related enzyme used to work up cholestatic/biliary obstruction. It parallels the increases of alkaline phosphatase in hepatobiliary diseases, but is not usually elevated in skeletal disorders such as Paget disease of bone.
Methodology: Kinetic – 340 nm