Sodium

Test code

836

CPT code(s)*

84295

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Clinical significance

Sodium - 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.

Test resources

None found for this test
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Details

Test details

Methodology

Ion Selective Electrode (ISE)

Specimen requirements
Patient preparation	None Specified
Preferred specimen(s)	1 mL serum
Alternative specimen(s)	Sodium heparin (green-top) tube • Lithium heparin (green-top) tube
Minimum volume	0.5 mL
Transport container	Serum separator tube (SST)
Transport temperature	Room temperature
Specimen stability	Serum and plasma Room temperature: 7 days Refrigerated: 7 days Frozen: 28 days
Reject criteria	Gross hemolysis • Anticoagulants other than heparin

Reference range(s)

135-146 mmol/L

LOINC® codes

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Service Area Information

Performing lab & setup schedule

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Service Area Information

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

*The CPT codes provided are based on AMA guidance and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

This material contains content from LOINC® (http://loinc.org). The LOINC Table, LOINC Table Core are copyright © 1995-2019, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee and is available at no cost under the license at http://loinc.org/license.