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Sodium
MessageDay(s) Test Set Up: Monday through Sunday
Test Code
NA
CPT Codes
84295
Preferred Specimen
1.0 mL serum
Instructions
Draw blood in a PST tube. Spin down.
Transport Container
PST tube
Transport Temperature
Refrigerated
Methodology
Ion-Selective Electrode (ISE) Potentiometric
Reference Range
137-145 mmol/L Alarm values: <120 mmol/L or >160 mmol/L
Clinical Significance
Sodium is the major cation of extracellular fluids and is regulated by the kidneys.
Last Updated: July 13, 2018