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Sodium

Test Code
NA


CPT Codes
84295

Preferred Specimen
1.0 mL serum


Transport Container
Gold Top Tube/Serum Separator Tube.


Transport Temperature
Room temperature or refrigerate.


Methodology
Ion-Selective Electrode (ISE) Potentiometric

Reference Range
136-145 mmol/L


Clinical Significance
Sodium is the major extracellular cation and functions to maintain fluid distribution and osmotic pressure.  Some causes of decreased levels of sodium  include prolonged vomiting or diarrhea, diminished reabsorption in the kidney and excessive fluid retention.  Common causes of increased sodium include excessive fluid loss, high salt intake and increased kidney reabsorption.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.