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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Sodium
Test CodeNA
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

