Osmolality, Urine

Message
Test 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



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.