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Pulmonary Volume

Pulmonary Volume Tests & Ventilary Efficiency

QuestionAnswer
What is Tidal Volume (TV)? amount of Air moving in or out in a single breath <0.5L
What is Inspiratory Reserve (IRV)? maximum Inhalation ABOVE Tidal Volume
What is Expiratory Reserve (ERV)? maximum Ehalation BEYOND Tidal Volume
What is Residual Volume (RV)? Air remaining after ERV
What comprises Total Lung Capacity? TV + IRV + ERV + RV = TLC
What is Vital Capacity? Total Volume that can be MOVED using Maximal Inhilation and Exhalation
What is the formula for Vital Capacity? VC = TV + IRV + ERV
What is the formula for Minute Volume? Breathing Rate x Tidal Volume
What factors influence Minute Volume? 1. Diameter of conducting units (bronchioles); 2. Efficiency of Muscle Units (diaphragm); 3. Action of the Inspiratory Center of the Medulla
Created by: Kristel
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