TEST ID UPDATE
Alkaline Phosphatase Isoenzymes
Order Code: FALKI
Fee Code: 22192 (CPT 84080)
Reference Laboratory: Mayo ALKI
New Order Code: ALKP
New Reference Lab: Mayo ALKP
Mayo Clinic Laboratories will replace their test ID ALKI with test ID ALKP effective January 30, 2025. This test is used to aid in the diagnosis and treatment of liver, bone, intestinal, and parathyroid diseases, determining the tissue source of increased alkaline phosphatase (ALP) activity in serum, and differentiating between liver and bone sources of elevated ALP.
Collection Instructions: Collect specimen in an SST (preferred) or red top tube from a fasting patient (8 hour fast). Centrifuge within 2 hours of collection, aliquot 1 mL of serum into a plastic vial, and freeze.