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Which of the following statements are TRUE about negative-pressure ventilation (NPV) ?
I. NPV is similar to spontaneous breathing.
II. Airway (mouth) pressure during NPV is zero.
III. Expiration during NPV is by passive recoil.
IV. NPV decreases pressure at the body surface.
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A valve located between the left ventricle of the heart and the aorta that prevents blood from flowing back into the heart.
Intercostals Space
The anatomical space between two ribs, which contains muscles, nerves, and blood vessels.
Stethoscope
A medical instrument used for listening to the internal sounds of the body, such as the heart and lungs.
Q-R-S Complex
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