Osmolality, Urine
Test Mnemonic
UOSM
CPT Codes
- 83935 - QTY (1)
LOINC ®
2695-5
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 3 mL | Urine, random | Clean container | Refrigerated | Submit in CCL aliquot tube. |
Alternate Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 3 mL | Urine, timed (well-mixed) | Clean container |
Minimum Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 0.5 mL |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | 1 week |
| Refrigerated | 1 week |
| Frozen | 1 week |
Days Performed
Sun - Sat
Turnaround Time
8 hours
Methodology
| Name | Description |
|---|---|
| Freezing Point Depression |
Reference Range
| Osmolality, Urine | |||||
|---|---|---|---|---|---|
| Sex | Age From | Age To | Type | Range | Range Unit |
| Normal | 50 - 1200 | mOsm/kg |
Clinical Info
Evaluation of dehydration, electrolyte balance.