| Ordering Code | 117 |
|---|---|
| Test Name | Alkaline Phosphatase |
| Alias | Alk Phos |
| Preferred Specimen | Serum |
| Preferred Container | SST (Gold) |
| Other Specimen/Container | Serum in Plain (Red), Plasma in Lithium Heparin (Green-PST), Plasma in Lithium Heparin (Dark Green-PP No Gel) |
| Optimum Volume | 1 mL |
| Handling Instructions | All specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection. |
| Transport Requirements | Oahu: Refrigerated Airline: Refrigerated |
| Specimen Stability | Refrigerated: 4 Days Frozen: 2 Months (Aliquot) Frozen samples should be thawed only once. |
| Rejection Criteria | Moderately hemolyzed, Insufficient quantity, Specimen older than stability limits |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | PNPP, AMP Buffer - IFCC |
Reference range(s)
The reference ranges listed below are valid on this date of August 15, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Alkaline Phosphatase | >=18Y | 35-129 | 35-129 | U/L | |||||
| Alkaline Phosphatase | 12Y-17Y | <390 | <187 | U/L | |||||
| Alkaline Phosphatase | 6Y-12Y | <300 | <300 | U/L | |||||
| Alkaline Phosphatase | 3Y-6Y | <269 | <269 | U/L | |||||
| Alkaline Phosphatase | 1Y-3Y | <281 | <281 | U/L | |||||
| Alkaline Phosphatase | 6M-1Y | <462 | <462 | U/L | |||||
| Alkaline Phosphatase | 5D-6M | <449 | <449 | U/L | |||||
| Alkaline Phosphatase | 1D-5D | <231 | <231 | U/L | |||||
| Alkaline Phosphatase | 0-1D | <250 | <250 | U/L |