Porphobilinogen, Qualitative
Order Code: PBG
Order Form: Laboratory Requisition
Specimen:
Urine, Random
Collection Medium:
Yellow top conical tube (no additive)
Alternate Collection Media:
Call laboratory for additional acceptable specimen collection containers.
Minimum:
1 mL random urine
Testing Schedule:
0700-2200 Monday through Friday. 0600-1400 Saturday, Sunday and holidays. For additional services contact Clinical Pathology Resident on-call at pager #3404.
Analytic Time:
3 hours (upon receipt in laboratory)
Reference Range:
Negative
Comments:
Screen uses the Hoesch test and can be done on random specimen. If screening results are positive and if clinically indicated, quantitative fractionation of porphyrins and porphobilinogen can be determined by the mail-out test Porphyrins & Porphobilinogen (PBG).
Methodology:
Colorimetric
Instructions:
Protect specimen from light by wrapping aluminum foil around specimen transport container.
Sample Processing:
Protect specimen from light.
Submit in leakproof container.
Label transport tube with two patient identifiers, date and time of collection.
Sample Storage:
Refrigerate.
Transport Instructions:
Place specimen into zip-lock type bag, seal bag.
Place requisition into outside pocket of bag.
Transport in cooler with refrigerated coolant packs.
CPT Code:
84106
 
See Additional Information:
Urine Tests Requiring Preservatives, Refrigeration or Special Containers
Urine Tests Requiring no Preservatives