Why get tested?
To help diagnose or rule out a phaeochromocytoma or other neuroendocrine tumour

When to get tested?
If you have symptoms of persistent or episodic high blood pressure such as severe headaches, rapid heart rate, and sweating


Sample required?
A 24-hour urine sample or possibly a blood sample drawn from a vein in the arm

Note: These tests are affected by certain drugs, foods, and stresses. Inform your doctor of any medications you are taking and follow any instructions you are given for things to avoid before sample collection.