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Resp001 Lung Volumes
Lung Volumes and Capacities
Question | Answer |
---|---|
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. |