Presión arterial

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La presión arterial normal es importante para un flujo sanguíneo adecuada a los órganos y tejidos corporales. La presión pasa de alta, cerca al corazón, a baja, lejos de él. La fuerza de la sangre sobre las paredes de las arterias se llama presión arterial o sanguínea. La presión se mide tanto en el momento en el corazón se contrae, lo que se conoce como sístole, y cuando se relaja, que se conoce como diástole. Se considera que la presión arterial normal es con una presión sistólica de 120 milímetros de mercurio y una presión diastólica de 80 milímetros de mercurio (expresado como "120 sobre 80"). Si una persona tuviera una lectura constante de 140 sobre 90, se le diagnosticaría presión alta. Si esta afección no se trata, puede dañar órganos importantes, como el cerebro y los riñones, además de conllevar una apoplejía.

Version Info

  • Last reviewed on 6/23/2012
  • David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Michael A. Chen, MD, PhD, Assistant Professor of Medicine, Division of Cardiology, Harborview Medical Center, University of Washington Medical School, Seattle, Washington. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M. Health Solutions, Ebix, Inc.

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This page was last updated: May 20, 2014

         
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