Osmolality, Urine, 24 Hour

Container Type = Orange Urine

Container Type

Test ID   LAB5108
EPIC Order
   OSMOLALITY, TIMED URINE
CPT Code(s)   83935
Group/Individual Test   Group
Laboratory   Core Laboratory
Tube Station   Deliver directly to the laboratory
Specimen Routine: 24 hrs or Timed urine, container "A", NO preservatives
Stability Refrigerated - 24 hrs
Availability 24 hrs/ day
Turnaround Time   Routine 2 hrs.; STAT 1 hr.
Reference Range Normal: Varies with fluid intake;~300-900 mOsm/kg.H2O
Comments
  • Provide start and stop times.
  • Keep the container refrigerated during collection.
  • Obtain "A" container from Central Distribution.
  • Total volume will be reported with results.

Reviewed by J. Carr on January 05, 2026

UNC Hospitals
McLendon Clinical Laboratories
101 Manning Drive
Chapel Hill, NC 27514