Test Overview
Test Methodology
Potentiometric (ISE)
Test Usage
Evaluate electrolyte balance
Reference Range *
0-11 years: 132 - 145 mmol/L, 12-150 years: 136 - 146 mmol/L.
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
Test Details
Days Set Up
Daily, 24 hours
Analytic Time
2 hours
Soft Order Code
SOD
MiChart Code
Sodium
Synonyms
- Na
Laboratory
Clinical Core Laboratory
Section
Clinical Chemistry
STAT Availability
STAT requests for this test will be performed on a STAT basis (supervisory staff approval is not required).
Specimen Requirements
Collection Instructions
Collect specimen in an SST tube. Centrifuge, aliquot serum into a plastic vial and refrigerate.
Alternate Specimen
Green top (sodium or lithium heparin), Red top.
Normal Volume
0.5 mL serum
Minimum Volume
0.25 mL serum
Billing
CPT Code
84295
Fee Code
20506
LOINC
2951-2
NY State Approved
No