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HelpTest Code NA Sodium
Specimen Information
Obtain specimen using standard phlebotomy techniques.
No special patient preparation is necessary.
Avoid using benzalkonium chloride when preparing for sample collection as this has been shown to increase sodium concentrations by approximately 20 mmol/L
| Container | Specimen | Temperature | Collect Vol | Submit Vol | Min Vol | Stability |
| SST | Serum | Refrigerate | 4.0 mL | 1.0 mL | 0.6 mL | 7 days |
| Lithium Heparin | Plasma | Refrigerate | 4.0 mL | 1.0 mL | 0.6 mL | 7 days |
Reject Due To:
- Moderate or Marked Hemolysis
- Specimen unlabeled or mislabeled
Instrumentation / Method
Ortho Vitros XT 7600 / Ion Selective Electrode
Test Schedule / Analytical Time / Test Priority
Daily / Same Day / Available STAT
Reference Range
Male and Female: 137 - 145 mmol/L
Critical Value(s): <120 or >155 mmol/L
CPT / LOINC / Order Code
| Meditech | Medent | LOINC | CPT |
| NAS | NAS | 2951-2 | 84295 |