Test Code LAB420 Osmolality - Urine
Department
CHEMISTRY
Collection Requirements
Random urine.
Primary Collection Container
Yellow Top, Urine collection tube
Transport
Urine refrigerated
Preferred Transport Temperature
Refrigerated
Processing
Centrifuge and refrigerate.
Stability
Ambient: 24 hours
Refrigerated: 1 week
Minimum Testing Volume
1.0 mL
Reference Range
300.0-1,100.0 mOsm/kg H2O
Methodology
Freezing Point Depression
Performed
Sunday – Saturday
Reported
As completed
CPT Codes
83935
Unacceptable Conditions
Blood or particulate matter.