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HelpOrderable Name ALPI Alkaline Phosphatase Isoenzymes, Serum
Specimen Required
Only orderable as part of a profile. For more information see ALKP / Alkaline Phosphatase, Total and Isoenzymes, Serum.
Patient Preparation: Fasting (8 hours) required
Collection Container/Tube:
Preferred: Serum gel
Acceptable: Red top
Submission Container/Tube: Plastic vial
Specimen Volume: 0.5 mL
Collection Instructions:
1. Within 2 hours of collection, centrifuge the specimen.
2. For red top tubes, immediately aliquot into a plastic vial.
3. For serum gel tubes, serum may sit on gel refrigerated but must be aliquoted within 7 days.
Useful For
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
Differentiating between liver and bone sources of elevated ALP
Method Name
Only orderable as part of a profile. For more information see ALKP / Alkaline Phosphatase, Total and Isoenzymes, Serum.
Electrophoresis
Specimen Type
SerumSpecimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Serum | Frozen (preferred) | 14 days |
| Ambient | 7 days | |
| Refrigerated | 7 days |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | OK |
| Gross icterus | Reject |
Reference Values
Only orderable as part of a profile. For more information see ALKP / Alkaline Phosphatase, Total and Isoenzymes, Serum.
Ages:
≤17 years: Reference values have not been established for patients younger than 18 years.
≥18 years:
Liver %: 30.2-74.7
Liver U/L: 15.8-71.9
Bone %: 23.8-68.3
Bone U/L: 12.0-56.7
Intestine %: ≤22.5
Intestine U/L: ≤12.6
Day(s) Performed
Tuesday through Saturday
Report Available
3 to 5 daysCPT Code Information
84080