Osmolality, Urine

Test Code
678


Alias/See Also
LAB420


CPT Codes
83935

Preferred Specimen
2 mL random urine


Minimum Volume
0.5 mL


Transport Container
Plastic urine container


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
Mon-Sat


Report Available
3-4 days


Reference Range
50-1200 mOsm/kg


Clinical Significance
For assessing the concentrating ability of the kidney.


Performing Laboratory
Quest Diagnostics Nichols Institute-Chantilly VA
14225 Newbrook Drive
Chantilly, VA 20151-2228




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.