能治疗充血性心力衰竭、心律失常的药物是 ["A．地高辛","B．米力农","C．氯沙坦","D．普萘洛尔"]
临床最常用的硝酸酯类药物是 ["A．硝酸异山梨酯","B．硝酸甘油","C．单硝酸异山梨酯","D．戊四硝酯"]
硝酸甘油对哪类血管扩张作用最弱 ["A．小动脉","B．冠状动脉","C．小静脉","D．毛细血管括约肌"]
简述慢性脓胸的治疗原则。
急性心肌梗死所导致的室性心律失常应首选 ["A．奎尼丁","B．胺碘酮","C．普萘洛尔","D．利多卡因"]
简述胸腔闭式引流的观察、护理要点及拔除指征。
