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.”
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