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Shafaq Yaqoob

What is the difference between positive and negative pressure ventilation?

Positive pressure ventilation is the system in
which the external pressure of air (outside the body) is higher than the internal pressure of air inside the lungs to
draw the air in the lungs. While negative pressure inhaling…

Page 2

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Shafaq Yaqoob

In positive pressure ventilation, a face mask or a tube going down the trachea is used in which a measured breath of
air is carefully forced down your throat. Once the lungs of the patient are fully inflated, the air pressure stops. The
lungs then deflate as the…


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