II. Preparation

  1. Stop agents altering metanephrines before checking
  2. See Pheochromocytoma for agents to avoid before test

III. Normal

  1. Urine Metanephrines: 0 to 2.0 mg per 24 hours

IV. Increased

  1. Pheochromocytoma
  2. Neuroblastoma
  3. Stress
  4. Drugs or medications
    1. Caffeine
    2. Phenothiazines
    3. MAO inhibitor

V. Alternative options

  1. Serum Metanephrines

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