A catecholamine test helps in diagnosis of a rare tumor in the adrenal glands called “pheochromocytoma”. This Tumor can lead your adrenal glands to release too many hormones. And that can cause high blood pressure, excessive sweating, fast heartbeats, and tremors. Catecholamines consist of three main types, i.e, dopamine, norepinephrine, and epinephrine. These chemicals break down into other components, which excretes your body through the urine system.A urine test should be done to measure the level of catecholamines in your body. Separate urine tests are conducted to measure related substance.