Sodium, Plasma or Serum

Test Code
2080


Preferred Specimen
One 4 mL plasma separator tube or serum separator tube.


Minimum Volume
Send sample to lab.  If longer than 20 minute delay, spin sample to separate from cells and refrigerate at 2-8°C. (Min: 0.2 mL)


Transport Temperature
Send sample to lab.  If longer than 20 minute delay, spin sample to separate from cells and refrigerate at 2-8°C. (Min: 0.2 mL)


Specimen Stability
After separation from cells: Ambient: 4 days; Refrigerated: 2 weeks; Frozen: 6 months


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Specimens collected in potassium oxalate, sodium fluoride, or sodium citrate.


Methodology
Ion-Selective Electrode

Setup Schedule
Sun-Sat


Report Available
Within 24 hours


Limitations
Allow serum to clot completely at room temperature.  Separate serum or plasma from cells ASAP.




The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.