Exposure to elevated barometric pressure during hyperbaric oxygen therapy can directly affect a number of physiologic parameters,including which of the following?
1)Arterial and alveolar partial pressure for oxygen
2)Temperature of the gases being breathed
3)Work of breathing
4)Lung volumes

Question

Quizplus · Accepted Answer

The effect of increased ambient pressure on the partial pressure of alveolar oxygen (PAO₂)can be explained by Dalton's law,which states that the total pressure of a gas mixture,such as air,equals the sum of the partial pressures of each of the constituent gases in the mixture.According to Gay-Lussac's law,if the volume of a gas remains constant,there is a direct relationship between the absolute pressure of a gas and its temperature.It is reasonable to suggest that if the volume of a hyperbaric chamber remains constant,then increasing the pressure would raise the temperature inside of the chamber.

Exposure to Elevated Barometric Pressure During Hyperbaric Oxygen Therapy Can