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Test Code UNA Sodium, 24 Hour, Urine

Performing Laboratory

Lima Memorial Health System Laboratory

Specimen Requirements

Container/Tube: Plastic urine container
Minimum Volume: 0.5ml 
Collection Instructions: Starting and ending times of collection are required. No preservative. Refrigerate specimen during collection, and send specimen refrigerated. Follow instructions in “24 Hour Urine Collection Instructions” in “Special Instructions.” 

Reference Values

40-220 mmol/24 hours

Day(s) Test Set Up

Monday through Sunday

Methodology

Ion-Selective Electrode (ISE)

Test Classification and CPT Coding

81050 - urine timed measurement
84300 - sodium