Coproporphyrin III; urine
CPT Code
84120
Specimen Requirements
10 mL - from 1st morning void or 24-hour urine collection
Collection Container/Tube
Collection urine in supplied plastic specimen collection cup. 24-hour urine collections are poured into larger amber container.
Transport Container/Tube
15 mL amber plastic specimen vial containing preservative (25mg Sodium Carbonate)
Minimum Specimen Volume
3 mL
Rejection Criteria
Sample not protected from light
Sample acidified - pH <5.0
Stability Information
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
37°C/99°F: Not determined
Methodology
HPLC
Turnaround Time
3 - 5 days
Reference Intervals
| Sex | Age | |
| Both | 0-10 years | <70 nmol/24H |
| Both | 11-17 years | <70 nmol/24H |
| Female | 17-99 years | <70 nmol/24H |
| Male | 17-99 years | <70 nmol/24H |
| Both | 0-10 years | <105 nmol/g creatinine |
| Both | 11-17 years | <85 nmol/g creatinine |
| Female | 17-99 years | <70 nmol/g creatinine |
| Male | 17-99 years | <60 nmol/g creatinine |