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Test Code NA WB Sodium, Whole Blood

Performing Laboratory

Memorial Hospital Laboratory- Automated Procedures  304-388-5953       
General Hospital Laboratory 304-388-6244
Women and Children's Hospital Laboratory 304-388-2385
Teays Valley Hospital Laboratory 304-757-1770
Plateau Medical Center Laboratory 304-469-8621
Greenbrier Valley Laboratory 304-647-6060

Specimen Requirements

Whole Blood- Dark Green Lithium Heparin

4 mL of whole blood (minimum 2 mL)

Specimen Rejection

  • Improperly labeled, collected, stored, and transported
  • Quantity not sufficient

Storage and Stability

Room Temperature                       30 minutes
Ice Slurry                  2 hours

Reference Values

>18 yrs         136-145 mmol/L
>10-18 yrs         133-144 mmol/L
>2-10 yrs         134-142 mmol/L
>1 month-2 yrs         133-142 mmol/L
0- 1 month         133-144 mmol/L

Critical Value 

>12 yrs old       < 120 and > 160 mmol/L
0 days- 12 yrs       < 130 and > 150 mmol/L

Methodology

Potentiometry

Days Test Set Up and Turnaround

Monday through Sunday, Continuously 

Results expected within 1 hour

CPT Coding

84295