Metanephrine and catecholamine levels, URINE: Sensitivity and Specificity

Introduction: None written. Excerpt from the entry in Pheochromocytoma:
Measurement of fractionated metanephrines and catecholamines in 24-hour urine collection

Note: TCA's and other psychoactive drugs may interfere with test results

Note: Won't be positive for a dopamine excreting tumor