Investigation Name:Porphyria Acute Symptomatic (Diagnosis)

Alias or Abbreviation:Porphyrin

Pathology Laboratory:Porphyrin

Requestable Seperately?No

Part of Profile:Yes

Tests in Profile:Urine PBG/Cre and urine porphyrin/cre

E-Requesting Tab:Blood Sciences>CHEM 1

Minimum Sample Volume:3 mL

Expected Turnaround Time:In house 1 day send away 7-14 days from receipt

Test Code:APS

Sample Type:

Maximum Add on Time:N/A

Complex Reference Range:Urine PBG/Cre <1.5 umol/mmol Urine porphyrin/Cre <35 nmol/mmol If patient <16 years profile includes ALA/Cre <5.2umol/mmol If PBG/Cre or porpyrin/Cre is raised urine and EDTA blood is referred for analysis

Collection Conditions / Other Information:Random urine in white top universal AND EDTA blood (purple top) PROTECT SAMPLES FROM LIGHT. Please note: urine PBG, whilst independently verified in the laboratory for use, is currently outside of the scope of our UKAS accreditation. If urgent please contact lab on ext 8266 LAB INFORMATION: If sample arrives unprotected from light but was collected <6hrs ago, protect from light, add comment in winpath and write ‘exposure to light (<6hrs) has occurred’ on request form sent to Cardiff. If sample arrives unprotected from light and was collected >6hrs ago, sample cannot be analysed – reject samples and request repeat. Please pass on to BMS immediately.

Reference Laboratory Details:Dept of Medical Biochemistry, University Hospital of Wales, Heath Park, Cardiff, CF14 4XW. (Tel: 029 2074 3565)

Referred to Another Laboratory?No

Reference Lab Code:UHWB