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Examen de isoenzimas de la fosfatasa alcalina - Results

Nombres alternativos

Examen de isoenzimas de la fosfatasa alcalina (FA)

Valores normales:

El valor normal es 20 a 140 UI/L (unidades internacionales por litro).

Los adultos tienen niveles de fosfatasa alcalina inferiores a los de los niños, debido a que los huesos que aún están creciendo producen niveles de FA más altos. Durante algunos aumentos repentinos en el crecimiento, dichos niveles pueden alcanzar hasta 500 UI/L. Por esta razón, el examen generalmente no se hace en niños y los resultados anormales se refieren a los adultos.

Los resultados del examen de isoenzimas pueden revelar si el incremento se da en la fosfatasa alcalina "en el hueso" o la fosfatasa alcalina "en el hígado".

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:

Niveles de fosfatasa alcalina superiores a los normales:

Los niveles de fosfatasa alcalina inferiores a lo normal pueden indicar:

Los niveles que sólo son ligeramente superiores a lo normal pueden no ser un problema, a menos que haya otros signos de una enfermedad o problema médico.

  • 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

Pratt DS. Liver chemistry and function tests. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 9th ed. Philadelphia, Pa: Saunders Elsevier;2010:chap 73.

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