Ventilation/Perfusion Ratio
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High Quality Content by WIKIPEDIA articles! In respiratory physiology, the ventilation/perfusion ratio (or V/Q ratio) is a measurement used to assess the efficiency and adequacy of the matching of two variables: "V" - ventilation - the air which reaches the lungs. "Q" - perfusion - the blood which reaches the lungs. These two variables constitute the main determinants of the blood oxygen concentration. In fact since V determines the quantity of oxygen mass reaching the alveoli per minute (g/min) and Q expresses the flow of blood in the lungs (l/min), the V/Q ratio refers to a concentration (g/l).…mehr

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High Quality Content by WIKIPEDIA articles! In respiratory physiology, the ventilation/perfusion ratio (or V/Q ratio) is a measurement used to assess the efficiency and adequacy of the matching of two variables: "V" - ventilation - the air which reaches the lungs. "Q" - perfusion - the blood which reaches the lungs. These two variables constitute the main determinants of the blood oxygen concentration. In fact since V determines the quantity of oxygen mass reaching the alveoli per minute (g/min) and Q expresses the flow of blood in the lungs (l/min), the V/Q ratio refers to a concentration (g/l).