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St. John Health System
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Porphyrins and Porphobilinogen, 24hr Urine

Order Name PORPH URQT
Test Number: 3812200
Revision Date 12/12/2022
Test Name Methodology LOINC Code
Porphyrins and Porphobilinogen, 24hr Urine
Assay Dependant  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 32 mL Urine, 24-hour 24 hour Urine Container Frozen (Light Protect)
Instructions Specimen: 32.0 mL aliquot of entire collection (Urine) Frozen Light Protected
Specimen Type: Plastic urine container, Urine Bottle
Specimen Storage: Not Available
Specimen Collection: Not Available
Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: Not Available
GENERAL INFORMATION
Expected TAT 3-5 Days  
Notes Labcorp Test Code: 342708
CPT Code(s) 82570, 84110, 84120
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab