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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 Code38465
CPT Codes
84295<br>Restricted Client Code
Preferred Specimen
1 mL plasma collected in a plasma separator tube
Minimum Volume
0.5 mL
Instructions
Centrifuge plasma specimens within 1 hour of collection, transfer plasma to sterile, plastic, screw-capped vial(s), and ship at room temperature.
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Unspun plasma separator tube; Unspun green-top tube (heparinized plasma not separated from cells); Anticoagulants other than lithium heparin, sodium heparin or fluoride/oxalate; Gastric fluid; Gross hemolysis
Methodology
Ion-Specific Electrode
Setup Schedule
Set up: Daily; Report available: 1-2 days
Reference Range
135-146 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.
