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dead space (VDS) air 150 ml stays in the conducting

airways during Minute ventilation.For each tidal volume (VT) of 500 ml air

inspired, 150 ml stays in the conducting airways, it does not participate in gas exchange. It merely enters and subsequently leaves the conducting airways. The remaining 350 ml of the tidal breath enters the alveoli (VA) and participates in gas

exchange.

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Dustin Marks

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Q: What is dead air space?
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