Laboratory: Clinical Biochemistry  (METABOLIC)
Test Name:
PORPHOBILINOGEN (PBG) - (U)
Test Code: PBG
Clinical Information:
Description: Measurement of Aminolevulinic Acid (ALA) and Porphobilinogen (PBG) by LC-MSMS
Test Indications: First-order test for evaluation of a suspected acute porphyria: acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria.
Collection Devices:
Preferred Device:
1 - Urine Collection 12 mL Tube


Urine Collection 12 mL Tube
Manufacturer: Sarstedt Canada Inc. (vendor)

Catalogue #:
 - Collect a random urine specimen. Collected in a container protected from light, without preservative. 
 
This collection is not suitable for urinary Porphyrins
Specimen Required:
Urine: 10.0 mL
Pediatric Urine: 5.0 mL

Collection Information: Collect a random urine specimen. Collected in a container protected from light, without preservative.
This collection is not suitable for urinary Porphyrins.
Specimen Stability:
Ambient: N/A
Refrigerated: 7 days
Frozen: 6 months
Referral:

Shipping & Storage: Store and send sample refrigerated/frozen and protected from light to the Metabolic Lab
Requisition:
Reference Values:
AGE                 PORPHOBILINOGEN
                        μmol/mmol creatinine
 
1 - 8 y:              0.1-1.4
9 - 17 y:            0.2-1.0
> 17 y:              < 1.0        
>17 y:               < 4.7 
Method of Analysis: Liquid Chromatography Mass Spectrometry
Availability:
Within 2 Weeks
See Also:
More Information:
If you have any questions, please communicate with the Metabolic Lab (HSC): 204-787-4530
 
Reject due to: Not protected from light, preservative, not refrigerated or frozen.