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HelpTest Code LAB446 Sodium, 24 Hour, Urine
Reporting Title
24-Hour Urine Sodium (Na mmol/24 hours)
Methodology
Roche Diagnostics, Ion-Selective Electrode (ISE)-RMH, GMC, DH, BH, MH
Performing Laboratory
OhioHealth Laboratory Services-RMH, GMC,DH,GMH, MH, BH Core Laboratory
Specimen Requirements
5 mL from a 24-hour urine collection in a screw-capped, plastic urine container. No preservative. Mix well before taking 5-mL aliquot.
Note: 1. 24-Hour volume is required on request form for processing.
2. Follow instructions in “Urine Collection” in “Special Instructions.”
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Urine | Refrigerated | 14 days |
| Ambient | 14 days | |
| Frozen | Stable |
Specimen Transport Temperature
Ambient/Refrigerate OK/Frozen OK
Reference Values
40-220 mmol/24 hours
Day(s) Test Set Up
Monday through Sunday; Continuously
Test Classification and CPT Coding
84300