SODIUM, URINE

Specimen Required
Collect 24 hour urine with no additive. Mix well and send 1.0 mL urine (0.2 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Urine: random

Rejection Criteria
pH adjusted urine specimens

Methodology
Quantative Ion-Selective Electrode

Stability
Room temperature: 8 hours; Refrigerated: 7 days; Frozen: 3 months

Reference Range
By report

Performed
Sunday-Saturday

Turnaround Time2-3 days
Test CodeUSOD
CPT-4 Code (s)
84300
LOINC Codes
Sodium, Urine - per volume   21526-1  
Creatinine, Urine - per volume   2161-8  
Creatinine, Urine - per 24h   2956-1  
Total Volume   19153-6  
Hours Collected   30211-7  

Warde
Medical
Laboratory