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NM.FISIO-RESPI

Fisiologia respiratoria - volumenes, capacidades y flujos

TermDefinition
volumen corriente volumen de aire que entra en los pulmonares durante una respiración normal - 500ml
volumen residual volumen de gas que permanece en los pulmones después de una espiración máxima, aquel que es imposible movilizar - 1200ml
volumen de reserva espiratorio volumen de gas expulsado durante una espiración forzada después de haber eliminado el volumen corriente - 1100ml
volumen de reserva inspiratorio volumen de gas inhalado durante una maniobra de inspiratoria máxima tras una inspiración normal - 3000ml
capacidad pulmonar total cantidad de aire que contienen los pulmones cuando se hallan totalmente distendidos - 5800ml
capacidad funcional residual es el volumen de gas que permanece en los pulmonares después de una espriación normal. es la posición de reposo del aparato respiratorio - VR + VRE = 2300ml
capacidad vital volumen de gas expulsado durante una espiración máxima a partir de una insipiración máxima. la cantidad de aire máxima que se puede movilizar - VC+VRI+VRE = CPT-VR = 4600ml
capacidad inspiratoria volumen de gas inspirado durante una maniobra forzada máxima a partir de la CFR - VC + VRI = 3500ml
volumen espiratorio forzado en 1 segundo (FEV1) volumen de gas espirado en el primer segundo de una espiración forzada
capacidad vital forzada volumen total que el paciente espira mediante una espiración forzada máxima
flujo mesoespiratorio (FEF 25-75%) flujo espiratorio forzado de aire en la parte media de la espiración. medida más sensible para valorar la obstrucción precoz de pequeña vía aérea y suele ser la primera alteración en fumadores.
indice de tiffeneau VEF1 / CVF e indica obstrucción si su valor <0.7
Created by: pablosbartrina
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