Sodium

Test Code
NA


CPT Codes
84295

Preferred Specimen
GREEN Lithium Heparin Plasma


Minimum Volume
0.25 mL


Other Acceptable Specimens
SST Serum Separator, Red No Gel


Instructions
Separate from cells within 2 days of collection


Transport Container
GREEN Lithium Heparin


Transport Temperature
Room Temperature


Specimen Stability
Room Temp: 4 Days; Refrigerated: 7 Days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Not separated from cells within 2 Days; Gross hemolysis


Methodology
Potentiometric Vitros 7600/3400

Reference Range
137-145 mmol/L; Critical : <120 or >155 mmol/L


Clinical Significance
Sodium is the major cation of extracellular fluids. The kidneys regulate sodium content of the body. Low sodium levels may be caused by excessive urine loss, diarrhea, Addison’s disease, and renal tubular disease. High sodium levels may occur in severe dehydration, some types of brain injury, diabetic coma, and excessive intake of sodium salts.


Performed By
RFGH Laboratory

Performing Laboratory
RFGH Laboratory



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.