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St. John Health System
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Sodium Urine Random

Order Name SODIUM R U
Test Number: 3001550
Revision Date 06/04/2021
Test Name Methodology LOINC Code
Sodium Urine Random
Ion-Selective Electrode 2955-3 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Urine, Random Sterile Urine container Refrigerated
Instructions Random urine collection. No preservative. Keep refrigerated.
Specimen stability: Ambient 1 day, Refrigerated 45 days, Frozen 1 year
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-2 days  
Clinical Use Useful in monitoring metabolic processes, pituitary function, adrenal function, hydration, proper body pH and regulation of appropriate heart and muscle functions. 
CPT Code(s) 84300
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Chemistry