Ventilation-perfusion mismatch pathophysiology: Difference between revisions
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==Pathogenesis== | ==Pathogenesis== | ||
In the upright position of the normal [[lung]], the amount of [[ventilation]] and [[perfusion]] is higher in the [[Base of lung|base of the lung]] compare to [[Apex of lung|apex of the lung]]. | In the upright position of the normal [[lung]], the amount of [[ventilation]] and [[perfusion]] is higher in the [[Base of lung|base of the lung]] compare to [[Apex of lung|apex of the lung]]. Although ventilation and perfusion are low in the apex of the lung, the perfusion is lower than ventilation in the apex. So, the V/Q is higher in the apex of the lung compare to the base. | ||
==Associated Conditions== | ==Associated Conditions== | ||
Revision as of 18:15, 30 July 2018
Template:Ventilation-perfusion mismatch
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Aida Javanbakht, M.D.
Overview
Any disruption between blood flow and ventilation is called V/Q mismatch.
Pathogenesis
In the upright position of the normal lung, the amount of ventilation and perfusion is higher in the base of the lung compare to apex of the lung. Although ventilation and perfusion are low in the apex of the lung, the perfusion is lower than ventilation in the apex. So, the V/Q is higher in the apex of the lung compare to the base.