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HelpTest Code LAB3033 Sodium, Blood
Performing Laboratory
Barnes-Jewish Hospital Laboratory
Methodology
Direct Ion-Selective Electrode (ISE)
Literature Reference:
Reference manual: ABL 800 FLEX Series. Radiometer America, Bronshoj Denmark, 2009.
Specimen Requirements
Specimen Type: Whole blood
Container/Tube: Sims-Portex blood gas syringe
Specimen Volume: Full tube
Collection Instructions: Send capped syringe (no needle attached) to the laboratory.
Day(s) Test Set Up
Monday through Sunday
Turnaround Time:
STAT: 15 minutes after receipt in laboratory
Routine: not available
Test Classification and CPT Coding
84295
Reference Values
135-145 mmol/L
Critical result (automatic call-back): ≤120 mmol/L or ≥160 mmol/L
Literature Reference:
Scott MG, Klutts JS, et al. Physiology and disorders of water electrolyte, and acid-base metabolism. In: Tietz textbook of clinical chemistry. 4th ed. Elsevier Saunders Co., 2005;1747-76.
Specimen Transport Temperature
Ambient
Additional Information
For BJH Laboratory Use Only
Analyte Stability:
See Analyte Stability Chart under General Information for a complete list.
Laboratory Processing Instructions:
Test performed in BJH Core Lab. Deliver to blood gas workstation immediately.
LOINC Code Information
| Name | LOINC Code |
| Sodium | 2947-0 |