动脉血气分析是危重症患者必不可少的检查手段，可用来判断机体是否存在酸碱平衡失调、判断通气换气功能、缺氧及缺氧程度等等。此外还需要结合其他检查，结合临床动态观察，才能正确判断患者的体内环境。掌握各项指标的含义，这样有助于对异常指标的 ...

Starting July 1, medical students who take the U.S. Medical Licensing Examination (USMLE) Step 2 Clinical Knowledge (CK) test will just have to be a little bit smarter. That's because the USMLE ...