II. Physiology

  1. VMA is a Catecholamine metabolite

III. Indications

  1. Pheochromocytoma (other tests used more often)
  2. Neuroblastoma diagnosis or monitoring
  3. Suspected Multiple endocrine adenomatosis
  4. Thyroid Medullary Carcinoma
    1. Evaluation for coexisting Pheochromocytoma

IV. Labs: Normal Levels

  1. Age 3-8 years: less than 2.3 mg per day
  2. Age 9-12 years: less than 3.4 mg per day
  3. Age 13-17 years: less than 3.9 mg per day
  4. Adults: less than 6.7 mg per day

V. Causes: Increased VMA Levels

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