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Laboratory Test Directory

Porphobilinogen (PBG), Urine


Name Method Department Units
Porphobilinogen, Urine Quantitative Ion Chromatography (Ion Exchange Chromatography)
Send Out

Specimen Requirements

Urine, 24 hours, Urine - Random

Container Type Container Size Specimen Volume

Sterile container

N/A 8 mL

24 hour urine container

N/A 8 mL

Refrigerated - 4 day(s)
Frozen - 1 month(s)

Specimen Preparation

  • Refrigerate during collection
  • Protect specimen from light. Cover with foil

Reasons for Rejection

  • Not protected from light
  • Room temperature receipt


Collection staff instructions:

24 hr. or random urine sample acceptable. Protect from light. For 24 hr. collection: At beginning of collection have patient void and discard this urine. Begin timing collection at this point and collect all urine until the end of the collection period. Have patient void and save urine at the final collection period. Refrigerate during collection, storage and transport to the send out lab.

CPT Code

  • 84110