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Catecolaminas en orina - Results

Nombres alternativos

Examen de dopamina en orina; Examen de epinefrina en orina; Examen de adrenalina en orina; Metanefrina en orina; Normetanefrina; Examen de norepinefrina en orina; Ácido homovanílico (AHV); AVM; AHV; Ácido vanililmandélico (AVM); Catecolaminas urinarias; Metanefrina

Valores normales:

Todas las catecolaminas se descomponen en sustancias inactivas que aparecen en la orina:

  • La dopamina se convierte en ácido homovanílico (AHV).
  • La norepinefrina se convierte en normetanefrina y ácido vanililmandélico (AVM).
  • La epinefrina se convierte en metanefrina y AVM.

Los siguientes valores normales corresponden a la cantidad de la sustancia que se encuentra en la orina en un período de 24 horas.

  • Dopamina: 65 - 400 microgramos (mcg)/24 horas.
  • Epinefrina: 0.5 - 20 mcg/24 horas.
  • Metanefrina: 24 - 96 mcg/24 horas (algunos laboratorios dan el rango de 140 a 785 mcg/24 horas).
  • Norepinefrina: 15 - 80 mcg/24 horas.
  • Normetanefrina: 75 - 375 mcg/24 horas.
  • Catecolaminas totales en orina: 14 - 110 mcg/24 horas.
  • AVM: 2 - 7 miligramos (mg)/24 horas.

Los rangos de los valores normales pueden variar ligeramente entre diferentes laboratorios. Hable con el médico acerca del significado de los resultados específicos de su examen.

Los ejemplos anteriores muestran las mediciones comunes para los resultados de estas pruebas. Algunos laboratorios usan diferentes medidas o podrían evaluar diferentes muestras.

Significado de los resultados anormales:

Los niveles elevados de catecolaminas en la orina pueden indicar:

El examen también se puede llevar a cabo para:

  • Reviewed last on: 6/1/2011
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

Referencias

Young WF. Adrenal medulla, catecholamines, and pheochromocytoma. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 246.

Young WF. Endocrine hypertension. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 16.

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