Supra-Regional Assay Service
Centres for Analysis and Clinical Interpretation
Assays

Assays / Porphyrins

Urinary d-aminolevulinic acid (ALA)

Urinary porphobilinogen (PBG)

Urinary total porphyrins

Total Faecal porphyrins

HPLC fractionation of individual porphyrins and isomers in urine and faeces

Plasma fluorescence emission scan

Porphyrin Genetics

Plasma Porphyrin

Erythrocyte protoporphyrin

Erythrocyte free protoporphyrin*

Erythrocyte zinc protoporphyrin*

Erythrocyte hydroxymethylbilane synthase (HMBS, PBG-deaminase)