| Ordering Code | 208 |
|---|---|
| Test Name | Phosphorus |
| Alias | PO4 PHOS Phosphate Inorganic Phosphate Inorganic Phosphorus |
| 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 | Ambient: 1 Day Refrigerated: 4 Days Frozen: 1 Year (Aliquot) Frozen samples should be thawed once. |
| Rejection Criteria | Hemolyzed, Insufficient quantity, Specimen older than stability limits |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Phosphomolybdate Complex |
Reference range(s)
The reference ranges listed below are valid on this date of November 7, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Phosphorus | >=13M | 2.6-4.9 | <= 1.0 | 2.6-4.9 | <= 1.0 | mg/dL | |||
| Phosphorus | 2W-12M | 2.5-7.0 | <= 1.0 | 2.5-7.0 | <= 1.0 | mg/dL | |||
| Phosphorus | 0-2W | 4.7-7.0 | <= 1.0 | 4.7-7.0 | <= 1.0 | mg/dL |
