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Urine Metanephrines

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Also known as: Metanephrine and Normetanephrine
Formal name: Urine Metanephrines, Total and Fractionated

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At a Glance

Why Get Tested?

To help diagnose or rule out a rare adrenal tumor called a pheochromocytoma or a rare extra-adrenal tumor called a paraganglioma; these tumors produce excess hormones called catecholamines, which are broken down to metanephrines.

When to Get Tested?

When you have signs and symptoms of increased catecholamines release, such as sudden bursts (paroxysms) of high blood pressure (hypertension), severe headaches, rapid heart rate (palpitations), sweating, tremors and pallor; when hypertension does not respond to standard treatments; when the signs and symptoms occur in a relatively young person (younger than age 40) and when there is a family history of hypertension; when your healthcare provider suspects you may have a tumor that is releasing or may release excess catecholamines

Sample Required?

Test Preparation Needed?

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