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Test Code LAB420 Osmolality, 24 HR Urine

Synonym

  • UOSM

Specimen Required

Preferred Container/Tube: 24 Hour Urine Container
Acceptable Container/Tube: 24 Hour Urine Container
Specimen Volume: 3 mL
Specimen Minimum Volume: 1 mL

Specimen Stability Information

Refrigerated: 24 hours

Specimen Collection Information

For timed urines keep specimen in refrigerator during collection and for storage.

Rejected Due To

  • Unacceptable container type
  • Sample received past listed stability

Reference Values

300-900 mOsm/kg

Method Description

Freezing point depression

Performing Lab

Clinical Lab UH

Day(s) Performed

Monday through Sunday

Report Available

Same day/1 day

Reporting Name

Osmolality, 24 Hr Urine

CPT Code Information

83935
81050

LOINC Code Information

2695-5