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Test Code PBGU Porphobilinogen, Quantitative, Random, Urine

Important Note

This test is only orderable by the laboratory.  To request this test in EPIC, please order LAB001 MAYO MISCELLANEOUS TEST.  Fill out appropriate prompts and request the Mayo test code listed above.

If you need further assistance, please contact the laboratory at 406-414-5010.

Useful For

First-order test for evaluating a suspected acute porphyria: acute intermittent porphyria, hereditary coproporphyria, and variegate porphyria

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Specimen Type

Urine


Shipping Instructions


Ship specimen protected from light.



Necessary Information


Include a list of medications the patient is currently taking.



Specimen Required


Patient Preparation: Patient must not consume any alcohol for at least 24 hours prior to collection.

Supplies: Urine Container-Amber, 60 mL (T596)

Specimen Volume: 20 mL

Collection Instructions:

1. Collect a random urine specimen.

2. No preservative necessary but pH must be above 5.0.

3. Specimens should be protected from light and frozen immediately following collection.


Specimen Minimum Volume

15 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Urine Frozen (preferred) 7 days LIGHT PROTECTED
  Refrigerated  7 days LIGHT PROTECTED

Reference Values

≤1.3 mcmol/L

Day(s) Performed

Monday through Friday

Test Classification

This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.

CPT Code Information

84110

Report Available

2 to 4 days

Reject Due To

  All specimens will be evaluated at Mayo Clinic Laboratories for test suitability.

Method Name

Liquid Chromatography Tandem Mass Spectrometry (LC-MS/MS)