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Osmolality, Urine
MessageTest performed at York Hospital Laboratory.
Test Code
UOSMO
CPT Codes
83935
Preferred Specimen
2 mL random urine collected in a transport tube, no preservative
Minimum Volume
0.5 mL
Transport Temperature
Room temperature
Specimen Stability
- Room temperature: 4 days
- Refrigerated: 7 days
- Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Preserved urine
Methodology
Freezing point depression
Setup Schedule
Daily Report – available same day
Reference Range
50-1200 mOsm/kg
Clinical Significance
For assessing the concentrating ability of the kidney
Performing Laboratory
York Hospital