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Mucopolisacáridos ácidos - Overview

Nombres alternativos

MPA; Dermatan sulfato en orina; Heparan sulfato en orina; Dermatan sulfato urinario; Heparan sulfato urinario

Definición:

Es un examen que mide la cantidad de mucopolisacáridos excretados en la orina en un período de 24 horas. Los mucopolisacáridos son cadenas largas de moléculas de azúcar que se encuentran en todo el cuerpo, con frecuencia en el moco y en el líquido alrededor de las articulaciones.

Forma en que se realiza el examen:

Se necesita una muestra de orina de 24 horas.

  • El día 1, orine en la taza de baño al levantarse en la mañana.
  • Después de esto, recoja toda la orina en un recipiente especial durante las siguientes 24 horas y guárdelo en el refrigerador o en un sitio fresco durante el período de recolección.
  • El día 2, orine en el recipiente al levantarse en la mañana.
  • Tape el recipiente y márquelo con el nombre, la fecha, la hora de terminación y llévelo al laboratorio o al médico lo antes posible.

Preparación para el examen:

No se necesita una preparación especial.

Lo que se siente durante el examen:

El examen involucra sólo una micción normal y no se produce ninguna molestia.

Razones por las que se realiza el examen:

Este examen se realiza para detectar un grupo raro de trastornos genéticos llamados mucopolisacaridosis, incluyendo el síndrome de Hurler.

En general, este examen sólo se hace en bebés que tengan antecedentes familiares de uno de estos trastornos.

  • Reviewed last on: 5/12/2011
  • Frank A. Greco, M.D., Ph.D., Director, Biophysical Laboratory, The Lahey Clinic, Burlington, MA. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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