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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
Preferred Specimen
1 mL serum
Minimum Volume
0.5 mL
Other Acceptable Specimens
Sodium heparin (green-top) tube • Lithium heparin (green-top) tube
Transport Container
Serum separator tube (SST)
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Refrigerated: 7 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Anticoagulants other than heparin
Methodology
Ion Selective Electrode (ISE)
Setup Schedule
24/7
Report Available
Same day
Reference Range
135-145 mmol/L
Clinical Significance
Sodium measurements are useful in the diagnosis and treatment of aldosteronism, diabetes insipidus, adrenal hypertension, Addison's Disease, dehydration, inappropriate antidiuretic hormone secretion, or other diseases involving electrolyte imbalance.
