OSMOLALITY, URINE

Specimen Required
Collect random urine. Send 2.0 mL urine (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Rejection Criteria
Preserved urine

Methodology
Freezing Point Depression

Stability
Room Temperature: 4 days; Refrigerated: 7 days; Frozen: 30 days

Reference Range
50 - 1200 mOsm/kg

Performed
Monday, Wednesday, Friday

Turnaround Time4-6 days
Test CodeUOSMQ
CPT-4 Code (s)
83935
LOINC Codes
2695-5

Warde
Medical
Laboratory