Sample type: Faeces

Test name: Porphyrins

Condition / Indication: Porphyria - Confirmation of diagnosis

Special precautions & notes: Please discuss request with laboratory. Once collected, protect sample from light at all times (wrap in foil, place in thick brown envelope), and send immediately.

Reference range: Total faecal porphyrin: <200 nmol/g dry weight.

Container: Blue top universal with spoon

Ideal volume (mL): 5 g

Referred outside NBT for analysis? Yes

Discipline: Clinical Biochemistry

Turnaround time: 15 days

cavuhb.nhs.wales/our-services/laboratory-medicine/medical-biochemistry-and-immunology/porphyria-service-cardiff/sample-choice-strategies/

Referral location: Porphyria Service, Medical Biochemistry (Upper Ground floor), University Hospital of Wales, Heath Park, Cardiff, CF14 4XW