临床医学的主要研究对象是流行病学的主要研究对象是 ["病人","非病人","人群","患病动物","非病动物"]
糖尿病患者往往尿量多,其原因为() ["水利尿","血管升压素分泌减少","血管升压素分泌增加","渗透性利尿","水利尿与渗透性利尿"]
呼吸衰竭定义指() ["PaO2<6.65kPa(50mmHg)和PaCO2>6.65kPa(50mmHg)","PaO2<6.65kPa(50mmHg),或伴有PaCO2>6.65kPa(50mmHg)","PaO2<8.0kPa(60mmHg)和PaCO2>6.65kPa(50mmHg)","PaO2<8.0kPa(60mmHg)和PaCO2>8.0kPa(60mmHg)","PaO2<8.0kPa(60mmHg),或伴有PaCO2>6.65kPa(50mmHg)"]
患者,男性,40岁,胸闷憋气2个月余入院,查体:头面部肿胀,颈静脉怒张,气管居中,双肺呼吸音对称、清晰,无咳嗽、咳痰,胸片提示右肺门阴影,前上纵隔影增宽应该首先考虑下列哪些检查() ["A.胸部CT","超声心动图","B超","MRI","纤维支气管镜","心电图","ECT"]
肾重吸收葡萄糖和氨基酸的部位在() ["近球小管","髓袢","远曲小管","集合管","以上所有部位"]
属于分析流行病学的是属于实验流行病学的是属于描述流行病学的是属于理论流行病学的是