| Ordering Code | 464 |
|---|---|
| Test Name | Osmolality, Urine |
| Preferred Specimen | Urine, Random |
| Preferred Container | Clean Container |
| Optimum Volume | 5 mL |
| Handling Instructions | Centrifuge and aliquot urine for transport. |
| Transport Requirements | Oahu: Refrigerated Airline: Frozen |
| Specimen Stability | Ambient: 1 Day Refrigerated: 1 Day Frozen: 1 Week |
| Rejection Criteria | Contaminated, Insufficient quantity, Specimen older than stability limits |
| Avail. Stat | NO |
| Analytic Time | 1 Day |
| Methodology | Freezing point depression |
Reference range(s)
The reference ranges listed below are valid on this date of November 22, 2025.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| Osmolality, Urine | ALL | 300-1300 | 300-1300 | mOsm/kg |
