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Catecholamines, Fractionated, plasma

Catecholamines, Fractionated, plasma

This panel contains the following tests:
• Epinephrine
• Norepinephrine
• Dopamine

The adrenal glands make large amounts of catecholamines as a reaction to stress. The main catecholamines are epinephrine (adrenaline), norepinephrine (noradrenaline), and dopamine. Certain rare tumors of the adrenal glands can also increase the amount of catecholamines in the blood and urine. A 4 or more hour fast is required for this blood test. However, drink water to stay hydrated and take medications as prescribed.
Special Note: Walnuts, bananas, and smoking should be avoided for a week prior to the blood test. Epinephrine, epinephrine-like drugs, and alpha-methyldopa are all medications that can invalidate the results of this test.