![]() ![]() c) there will be no effect on either the partial pressure or diffusion rate of gases. ![]() b) the partial pressure of carbon dioxide in the alveoli will increase. in respiratory physiology, the dead space describes that volume part of inhaled air that is not involved in gas exchange. Under these conditions a) the partial pressure of oxygen in the alveoli will increase. Background Dead space is the volume not taking part in gas exchange and, if increased, could affect alveolar ventilation if there is too low a delivered volume. Total Pulmonary Ventilation Rate will increase. Assume that whole-body metabolic rate (VO2) stays constant, but the alveolar ventilation rate (VA) is decreased. Anatomic dead space is an important phenomenon in respiratory physiology whereby, owing to the fact that upper airways do not function as locations for gas exchange, and because of the tidal nature of ventilation, there is always a fraction of the inspired air that does not perform a physiologic function of exchanging carbon dioxide for oxygen.1 This is therefore termed anatomical dead space. Which of the following statements is correct if she changes her breathing pattern to 15 breaths per minute with a tidal volume of 400 ml (assume a dead space volume of 150 ml) Alveolar Ventilation Rate will decrease. ![]() Physiological dead space can occur due to changes in function, such as in cases of infection of the lung it will typically affect ventilation if the infection is in the lung and. posture positions: sitting, standing, lying) it will affect both ventilation (V) and perfusion (Q). The product of tidal volume and the breathing frequency is equivalent to the a) pulmonary ventilation rate (VE) b) alveolar ventilation rate (VA) c) oxygen consumption rate (VO2) d) dead space ventilation 2. Anatomical dead space can occur due to changes in gravity (i.e. ![]()
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