Ventilation-Perfusion Matching
HardHigh-yieldPhysiology · Respiratory
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The V/Q ratio is the single most important determinant of gas exchange efficiency, and a perennial favourite in NEET PG Physiology. This topic stitches together regional lung mechanics, hypoxic pulmonary vasoconstriction, the alveolar gas equation, the A–a gradient, and the five mechanisms of hypoxaemia — all applied to respiratory failure and pulmonary embolism. Ventilation (V) is the volume of fresh alveolar gas…
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