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Test Code OSMOTU Osmolality, Timed Urine

Additional Codes

Sunrise Clinical Manager (SCM) Orderable:  

AllScripts (AEHR) Orderable: 

Performing Laboratory

Northwell Health Laboratories


Freezing Point Depression

Reference Values


50 – 1200 mOsm/kg.

Test Classification and CPT Coding


Day(s) and Time(s) Performed

Monday through Sunday

Physician Office Specimen Requirements

Container/Tube:  Plastic urine container

Specimen:  10 mL from a timed urine collection. No preservative.

Transport Temperature:  Refrigerated

Stability:  7 Days Refrigerated

                 7 Days  Frozen

Please indicate collection interval on container

Computer Interface Code

PDM # 5302462