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Oxford University Hospitals NHS Foundation Trust
Clinical Biochemistry

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Also known as: Na

Specimen requirements

Sample type: Plasma (Lithium Heparin)

Collection requirements: No special requirements


Price on application

Turnaround time

Please see Turnaround times

Analytical method

Ion-selective electrode

Analysis undertaken at these site(s)

  • John Radcliffe Hospital
  • Churchill Hospital
  • Horton General Hospital

Reference intervals


All ages: 135 - 145 mmol/L


All ages: 135 - 145 mmol/L