Test Code LAB446 Sodium, Urine, 24 Hour
Methodology
Ion-Selective Electrode (ISE)
Performing Laboratory
RCH-SPH
Specimen Requirements
10 mL from a 24-hour urine collection in a plastic urine container. No preservative.
Note: 1. 24-Hour volume is required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”
Specimen Stability
Refrigerated: 1 week
Day(s) Test Set Up
Monday through Sunday
Test Classification and CPT Coding
84300