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Labcorp Oklahoma, Inc.
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Porphyrins and Porphobilinogen, 24hr Urine

Order Name PORPH URQT
Test Number: 3812200
Revision Date 04/08/2025
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 (24 mL) Urine, 24-hour 24 hour Urine Container Frozen (Light Protect)
Instructions Specimen: at least 32.0 mL aliquot of entire collection (Urine) Please process into THREE SEPARATE 10-8mL Frozen Light Protected Tubes.
Specimen Type: Plastic urine container, Urine Bottle Transfer the urine into Labcorp amber plastic frozen transport tubes with amber cap (Labcorp No. 78656)
Specimen Storage: Frozen
Specimen Stability: Ambient: Not Available, Refrigerated : Not Available, Frozen: Not Available
GENERAL INFORMATION
Expected TAT 3-5 Days  
Performing Labcorp Test Code 342708 
CPT Code(s) 82570, 84110, 84120
Lab Section Reference Lab