Which tests should be performed when pheochromocytoma is suspected in patients with hypertension (high blood pressure)?

Updated: Feb 22, 2019
  • Author: Matthew R Alexander, MD, PhD; Chief Editor: Eric H Yang, MD  more...
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If pheochromocytoma is suspected, urinary catecholamines and fractionated metanephrines are the tests of choice. Plasma fractionated metanephrines have specificity, but their sensitivity is too low for screening purposes. Urinary vanillylmandelic acid (VMA) is no longer recommended because of its poor sensitivity and specificity.

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