Which of the following statement(s) is/are true concerning the pathophysiology of gas exchange?
A. Hypoventilation in relation to perfusion can result in an oxygen saturation of less than 100%
B. Diffusion block and / mismatch can almost completely be overcome by breathing 100% oxygen
C. Transpulmonary shunting does not occur under normal circumstances
D. The normal arterial oxygen saturation should be 100%
Answer:A
Which of the following statement(s) is/are true concerning the pathophysiology of gas exchange?
A. Hypoventilation in relation to perfusion can result in an oxygen saturation of less than 100% B. Diffusion block and / mismatch can almost completely be overcome by breathing 100% oxygen C. Transpulmonary shunting does not occur under normal circumstances D. The normal arterial oxygen saturation should be 100%