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SODIUM
MessageHeparin choice is Lithium
Test Code
NA
CPT Codes
84295
Preferred Specimen
1 Gold tube (gel separator)
Minimum Volume
0.6 mL
Other Acceptable Specimens
or 1 Green tube (Lithium Heparin)
Instructions
Centrifuge for complete separation of plasma/serum and red cells. See Specimen Container for appropriate sample type. Separate and refrigerate until tested.
Specimen Stability
2-8°C up to 7 days; No additional storage types available
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis, lipemia, and icterus interferes
Methodology
Indirect ISE (Ion Selective Electrode)
Setup Schedule
M, T, W, Th, F, Sa, Sun
Reference Range
133.0 - 144.0 mEq/L
Clinical Significance
Used in the diagnosis and treatment of aldosteronism, diabetes insipidus, hypertension, and Addison’ s disease.
Performed By
Alverno Laboratories
Performing Laboratory
Alverno Central Lab
NCHB1 (Chemistry, Beckman AU)
Last Updated: April 25, 2023