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