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Test Code UNA24 Sodium, 24 Hour, Urine

Additional Codes

St. Luke's Compendium Code (Iatric): L650.2100

Performing Laboratory

St. Lukes Hospital Laboratory

Methodology

Ion-Selective Electrode (ISE)

Specimen Requirements

10 mL from a well-mixed, 24-hour urine collection. No preservative. Refrigerate specimen during collection, and send specimen refrigerated.
Note:  1. 24-Hour volume is required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”

Reference Values

40-220 mEq/24 hours

Day(s) Test Set Up

Monday through Sunday

Test Classification and CPT Coding

84300

Physician Office Specimen Requirements

Send entire 24-hour urine collection. No preservative. Refrigerate specimen during collection, and send specimen refrigerated.
Note:  1. Starting and ending times of collection are required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”

Special Instructions