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Examen de hidróxido de potasio en lesión de piel - All Information

Nombres alternativos

Examen de hidróxido de potasio en lesión cutánea

Definición:

Es un examen utilizado para diagnosticar una infección micótica de la piel.

Forma en que se realiza el examen:

El médico raspa la lesión de la piel, utilizando un borde romo como el del portaobjetos de un microscopio. Los raspados de la lesión de piel se colocan en un líquido que contiene hidróxido de potasio (KOH) y se examina bajo el microscopio. El hidróxido de potasio destruye todas las células no micóticas, lo cual hace más fácil ver si hay cualquier hongo presente.

Preparación para el examen:

No se necesita preparación especial para el examen.

Lo que se siente durante el examen:

La persona puede sentir presión cuando el médico raspa la lesión de la piel.

Razones por las que se realiza el examen:

El examen se realiza para diagnosticar una infección micótica de la piel.

Valores normales:

Normalmente no hay hongos.

Significado de los resultados anormales:

El frotis de hidróxido de potasio muestra hongos que pueden estar relacionados con tiña, pie de atleta, tiña inguinal u otra infección micótica.

Cuáles son los riesgos:

Existe un pequeño riesgo de sangrado o infección por el raspado de la lesión.

  • Reviewed last on: 5/13/2011
  • Kevin Berman, MD, PhD, Atlanta Center for Dermatologic Disease, Atlanta, GA. Review provided by VeriMed Healthcare Network.  Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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