Catecholamines, Urine, Free, 24-hour LabCorp

The Catecholamines, Fractionated, 24-hour Urine test is used to help diagnose pheochromocytoma and those paragangliomas which may secrete epinephrine, norepinephrine, or both. Such tumors may cause paroxysmal or persistent hypertension. Investigation of hypertensive patients, especially younger individuals, particularly when hypertension is paraoxysmal, suggesting pheochromocytoma. Plasma catecholaminse with urinary metanephrinse and VMA are a recommended test battery for pheochromocytoma.  

To read more about this test, click here: https://www.labcorp.com/test-menu/22001/catecholamines-fractionated-urinary-free-24-hour-urine