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Also known as: Dopamine; Epinephrine; Norepinephrine; Free Urine Catecholamines; Fractionated Catecholamines
Formal name: Catecholamines, Plasma and Urine

At a Glance

Why Get Tested?

To help diagnose or rule out a pheochromocytoma or other neuroendocrine tumor

When to Get Tested?

When you have symptoms of increased catecholamines release, such as persistent or episodic high blood pressure, severe headaches, rapid heart rate, and sweating

Sample Required?

A blood sample drawn from a vein in the arm or a 24-hour urine sample

Test Preparation Needed?

These tests are affected by certain drugs, foods, and stresses. Inform your doctor of any medications you are taking and follow any preparation instructions you are given before sample collection.