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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.