Written by Super User on . Posted in Clinical Services / Interpretation of Results

Porphyria Screens

The laboratory performs a urine porphyrin screen in house whilst blood samples (required for latent porphyria or cutaneous porphyria) and all samples from known porphyria patients are referred to a specialist laboratory. The sample required and interpretation depends upon the clinical scenario;

All samples for porphyria investigations must be protected from the light otherwise there are a risk of a false negative result. Clinical details MUST be provided with a request for investigation of porphyria. This is to enable appropriate investigation and reporting by both QEHB lab and the specialist laboratories.

In the event of a positive or equivocal urine porphyrin screen, additional samples (EDTA blood/faeces) may be requested for referral to a specialist laboratory.

UHB, Clinical Chemistry, Clinical