急性低氧血症急性低氧血症与引起低氧血症(hypoxe-mia,HXA)的原发病或伴随的障碍如 CO_2潴留在临床表现上很难区别,脑功能也比其他生命重要脏器先受到 HXA 损害。肺泡氧分压(P_AO_2)接近55mmHg 时,可有近期记忆改变,动脉氧分压(PaO_2)接近30mmHg 时,可能发生意识丧失。显然,有循环机能异常的人,即使 HXA Acute hypoxemia Acute hypoxemia is very difficult to distinguish from primary disease or accompanying disorder of hypoxemia (hypoxemia), such as CO 2 retention, and brain function is more important than other vital HXA first by the damage. Almost the alveolar oxygen pressure (P_AO_2) approaches 55 mmHg, there may be recent changes in memory, and loss of consciousness may occur when the arterial oxygen partial pressure (PaO_2) approaches 30 mmHg. Obviously, people with circulatory abnormalities, even HXA