Interpretation relies on comparing 24-hour excretion levels against established reference ranges.
Catecholamines Fractionated by LC-MS/MS, Urine Free - ARUP Lab especially before age 20.
Primarily used as a marker for neuroblastoma in children, often analyzed alongside VMA and HVA. Adult Reference Ranges (Approximate): Epinephrine: < 18.3 µg/24h or < 30 µg/24h Norepinephrine: < 84.6 µg/24h or < 60 µg/24h Dopamine: < 459.6 µg/24h or < 600 µg/24h 3. 24-Hour Collection Protocol especially before age 20.
Cases of unusually severe or intermittent high blood pressure, especially before age 20. especially before age 20.