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HelpTest Code LAB420 Osmolality, Urine
Intended Use
To determine milliosmoles per kilogram of water (mOsm/kg water) in urine samples
Methodology
Freezing Point Depression
Performing Laboratory
RCH
Specimen Requirements
Specimen must arrive within 24 hours of collection.
2 mL from a random urine collection in a screw-capped, sterile container. No preservative.
Early-morning, clean-catch random urine collection is recommended.
Maintain sterility and forward promptly.
Specimen Stability
Refrigerated: 24 hours
Frozen (< -20C): > 24 hours
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
83935