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Porphobilinogen (PBG), Random Urine
2011476
Ordering Recommendation

Essential first-line test for suspected acute porphyria in adults. Use in determining metabolic response to IV hematin.

Mnemonic
UPBGQTRAND
Methodology
Quantitative Ion Exchange Chromatography/Spectrophotometry
Performed
Mon-Fri
Reported
1-4 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
 
Collect
Random urine. 
Specimen Preparation
Protect from light. Transfer an 8 mL aliquot from a well-mixed collection to ARUP Amber Transport Tubes. (Min: 3.5 mL) 
Storage/Transport Temperature
Frozen. 
Unacceptable Conditions
Body fluids other than urine. 
Remarks
 
Stability
Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month 
Reference Interval
Components
Reference Interval
Porphobilinogen (PBG), Urine-per volume0.0-8.8 µmol/L
Porphobilinogen, Rndm Urn-ratio to CRTNo reference interval (mg/g crt)

Interpretive Data


Note
Appropriate test to rule out acute intermittent porphyria (AIP) and other acute attacks of other types of porphyrias associated with neurologic and/or psychiatric symptoms.
CPT Code(s)
84110
Components
Component Test Code*Component Chart NameLOINC
0020207Creatinine, Urine - per volume2161-8
0080262Porphobilinogen (PBG), Urine -per volume2811-8
2011477Porphobilinogen, Rndm Urn-ratio to CRT13797-6
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Aliases
  • PBG, Quantitative
  • Porphobilinogen
  • Watson-Schwartz Test