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Sodium
Test CodeLAB122
Alias/See Also
Na
CPT Codes
84295
Preferred Specimen
4.5 ml (600 ul min) lithium heparin (green); alternate-SST (gold) or Red (no additive)
Minimum Volume
1 ml (200 ul minimum) plasma; alternate-serum
Instructions
After centrifugation, if not in gel barrier tube, pour off plasma or serum into an aliquot tube
Transport Temperature
Room temp
Specimen Stability
Separated from cells: 24 hours room temp, 7 days refrigerated
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Icteric: >30 mg/dL bilirubin, Hemolysis: >500 mg/dL hemoglobin, Lipemia: >500 mg/dL
Methodology
Ion-Selective Electrode Indirect
Setup Schedule
Mon- Sun
Reference Range
133-145 meq/L
Clinical Significance
Sodium measurements are used in the diagnosis and treatment of aldosteronism (excessive secretion of hormone
aldosterone), diabetes insipidus, adrenal hypertension, Addison`s disease, dehydration, inappropriate antidiuretic
hormone secretion, or other diseases involving electrolyte imbalance
aldosterone), diabetes insipidus, adrenal hypertension, Addison`s disease, dehydration, inappropriate antidiuretic
hormone secretion, or other diseases involving electrolyte imbalance
Performing Laboratory
Piedmont Athens Regional
