Skip to main content
Clinical Biochemistry

This site is best viewed with a modern browser. You appear to be using an old version of Internet Explorer.


Also known as: Priadel

Specimen requirements

Sample type: Serum (Serum)

Collection requirements: Lithium Heparin is not suitable for this assay


Price on application

Turnaround time

Please see Turnaround times

Analytical method

Spectrophotometry - Colorimetric - Substitutes Porphyrin Compound

Analysis undertaken at these site(s)

  • John Radcliffe Hospital
  • Horton General Hospital

Reference intervals


All ages: 0.5 - 0.8 mmol/L


All ages: 0.5 - 0.8 mmol/L

Last reviewed:17 June 2024