Asked by: Nadina Stielertmedical health lung and respiratory health
What is impaired ventilation?
Last Updated: 23rd May, 2020
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Similarly, it is asked, what causes decreased ventilation?
Alveolar hypoventilation is caused by several disorders that are collectively referred as hypoventilation syndromes. Alveolar hypoventilation is defined as insufficient ventilation leading to hypercapnia, which is an increase in the partial pressure of carbon dioxide as measured by arterial blood gas analysis (PaCO2).
One may also ask, what does ventilation perfusion imbalance mean? Ventilation perfusion mismatch or "V/Q defects" are defects in total lung ventilation perfusion ratio. It is a condition in which one or more areas of the lung receive oxygen but no blood flow, or they receive blood flow but no oxygen due to some diseases and disorders.
Thereof, what is the difference between ventilation and perfusion?
Ventilation (V) refers to the flow of air into and out of the alveoli, while perfusion (Q) refers to the flow of blood to alveolar capillaries. Individual alveoli have variable degrees of ventilation and perfusion in different regions of the heart.
What does high alveolar ventilation mean?
Alveolar Ventilation. High rates of air exchange in functioning alveoli, that is higher alveolar ventilation, would bring in fresh oxygen-rich air and efflux carbon dioxide-laden air rapidly; consequently, the concentration of oxygen would be higher and the concentration of carbon dioxide would be lower within alveoli.