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Resp001 Lung Volumes

Lung Volumes and Capacities

QuestionAnswer
Volume The amount of space occupied by a three-dimensional object or region of space, expressed in cubic units.
Capacity The ability to receive, hold, or absorb: The maximum amount that can be contained.
TIDAL VOLUME (Vt) Most common volume that RCPs deal with on a daily basis is _____. Amount of volume you have going in and out with every breathe.
FRC (Functional Residual Capacity) Most common capacity that we deal with is ____ A tool used to help a patient oxygenate.
TLC total lung capacity - 6000mL
oxygenatin O2
Ventilation CO2
IRV Ispiratory reserve volume - 3100mL
ERV Expiratory reserve volume - 1200mL
RV Residual Volume - 1200mL. unable to be measured directly. It can never be exhaled in order to help with the next inhalation.
Normal Tidal volume about 500mL
IC Inspiratory capacity - about 3600mL
FRC Functinal residual capacity - 2400mL
VC Vital capacity - 4800mL
how do you measure RV? Helium Dilution Method Nitrogen Washout Method Body Plethysmographic Method (Body Box)
The higher FRC is the more likely you are to retain CO2
restrictive disease cause low lung volumes and low cause low capacities. Ex. kyphoscoliosis.
Created by: 725650999