Ordering Recommendation
Mnemonic
UOSMO
Methodology

Freezing Point

Performed

Sun-Sat

Reported

Within 24 hours

New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Collect

Random urine.

Specimen Preparation

Transfer 1 mL aliquot from a well-mixed random urine to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Storage/Transport Temperature

Frozen.

Unacceptable Conditions

Urine collected with preservatives.

Remarks
Stability

Ambient: 24 hours; Refrigerated: 1 week; Frozen: 6 months

Reference Interval

0-30 days: 50-645 mOsm/kg
1 month-16 years: 50-1500 mOsm/kg
17 years and older: 50-800 mOsm/kg

Interpretive Data



Compliance Category

FDA

Note
Hotline History
N/A
CPT Codes

83935

Components
Component Test Code* Component Chart Name LOINC
0020228 Urine Osmolality 2695-5
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • urine osmolality
Osmolality, Urine