OSMOLALITY, URINE

Test Code

LAB420

Quest Code

678

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

a.m. Mon-Fri

Report Available

4 days

Reference Range

50-1200 mOsm/kg

Clinical Significance

For assessing the concentrating ability of the kidney.

Performing Laboratory

Quest Diagnostics-Lenexa

10101 Renner Blvd

Lenexa , KS 66219-9752

Last Updated: August 13, 2021

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.