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Gravedad específica de la orina - Overview

Nombres alternativos

Densidad urinaria

Definición:

La gravedad específica de la orina es un examen de laboratorio que mide la concentración de todas las partículas químicas en la orina.

Ver también:

Forma en que se realiza el examen:

El examen requiere una muestra limpia de orina. Para obtener información sobre cómo recoger esta muestra de orina, ver: urocultivo en muestra limpia.

Preparación para el examen:

De ser necesario, el médico le dará instrucciones para descontinuar fármacos que puedan interferir con el examen. Entre los fármacos que pueden aumentar los niveles de gravedad específica se encuentran el dextrán y la sacarosa. Asimismo, el hecho de recibir un medio de contraste intravenoso para un examen radiográfico hasta 3 días antes de la prueba también puede interferir con los resultados.

Consuma una alimentación balanceada y normal durante varios días antes del examen.

Lo que se siente durante el examen:

El examen implica únicamente la micción normal y no produce ninguna molestia.

Razones por las que se realiza el examen:

Este examen ayuda a evaluar el equilibrio hídrico y la concentración de orina del cuerpo.

  • Reviewed last on: 8/7/2009
  • 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

Bazari H. Approach to the patient with renal disease. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 115.

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