Home
HelpEpic Test Code LAB420 Osmolality: Urine, Random
Performing Location(s)
BMC
Specimen Type
Random Urine
Preferred Container
Random Urine Tube
Minimum Volume to Submit for Testing
5.0 mL Urine
- Multiple test can be performed from this volume. For question please contact the lab at 547-3975.
Storage Requirements
Specimen not delivered to the laboratory within 1 hour should be refrigerated.
Transportation Needs
Deliver specimen to the laboratory within 1 hour of collection.
Causes for Rejection
Mislabeled or unlabeled specimen
Collection with preservatives
Uncapped
Sample > 24 hours refrigerated
Sample > 12 hours room temperature
No Add-ons > 24 hours after receipt at MIB
Reference Values
| Population | Units | Reference Range |
| All Populations | mOsm/kg | 50-1200 |
| (Note: Depends on Fluid Intake) | ||
Days of Analysis
All
Available STAT
No
Additional Information
Testing should occur as soon as possible and not > 24 hours after receipt at MIB
Can NOT add-on osmolality after aliquot has been opened and re-capped after 12 hours due to sensitivity to evaporation.
Methodology
Freezing Point Depression
CPT Code
83935
Last Updated
30-Mar-19