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HelpTest ID NABF Sodium, Body Fluid
Method Name
Indirect Ion-Selective Electrode (ISE)
Reporting Name
Sodium, BFSpecimen Type
Body FluidContainer/Tube: Sterile container
Specimen Volume: 1 mL
Collection Instructions: Centrifuge to remove any cellular material.
Additional Information: Indicate specimen source.
Specimen Minimum Volume
0.5 mL
Specimen Stability Information
| Specimen Type | Temperature | Time |
|---|---|---|
| Body Fluid | Refrigerated | 14 days |
Reference Values
Not applicable
Cautions
It is important to remember that values determined by direct potentiometry-ion selective electrode will be higher in specimens with high protein and lipid concentrations than the corresponding serum specimen that is assayed by an indirect potentiometric method. The whole blood sodium values are the correct values.
Ion selective electrodes are selective but not absolutely specific for the ion in question. Other monovalent cations may react with the electrode but not in the physiologic range.
Day(s) Performed
Monday through Sunday; Continuously
Report Available
Same day/1 dayPerforming Laboratory
Mayo Medical Laboratories in Rochester
Test Classification
This test has been modified from the manufacturer’s instructions. Its performance characteristics were determined by Mayo Clinic in a manner consistent with CLIA requirements.CPT Code Information
84302