Video - Ventilation-perfusion ratios and V/Q mismatch

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Video Summary
Ventilation-perfusion (V/Q) ratio is a measure of the relationship between the amount of air entering the alveoli (V) and the amount of blood flowing through the capillaries surrounding the alveoli in the lungs (Q). V/Q mismatch is a condition that occurs when this ratio is not properly matched resulting in ventilation-perfusion mismatch or dead space ventilation. V/Q mismatch can be caused by various factors, such as lung conditions like pulmonary embolism, asthma, COPD, and interstitial lung diseases.