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Metanephrines and Catecholamines

0050184

Metanephrines, Plasma (Free) 0050184

2007996

Metanephrines Fractionated by HPLC-MS/MS, Urine 2007996

0080422

Homovanillic Acid (HVA), Urine 0080422

0080421

Vanillylmandelic Acid (VMA), Urine 0080421

0080470

Vanillylmandelic Acid (VMA) and Homovanillic Acid (HVA), Urine 0080470

0080216

Catecholamines Fractionated, Plasma 0080216

0080407

Catecholamines Fractionated by LC-MS/MS, Urine Free 0080407

About This Topic

A pheochromocytoma workup begins with testing a patient's metanephrines levels.

Catecholamines Fractionated, Plasma (0080216) and Catecholamines Fractionated by LC-MS/MS, Urine Free (0080407) are usually unnecessary and should only be performed as a follow-up test if a patient exhibits clinical symptoms of excess catecholamine secretion. Vanillylmandelic Acid (VMA), Urine (0080421) is useful only in diagnosing neuroblastoma and not in diagnosing pheochromocytoma.

Recommendation

Metanephrines, Plasma (Free) (0050184) and Metanephrines, Fractionated by HPLC-MS/MS, Urine (2007996) detect most cases of pheochromocytoma.

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Metanephrines and Catecholamines