关于大叶性肺炎下列哪项是错误的() ["由细菌感染引起","病变多从肺泡开始","炎症不破坏肺泡壁结构","患者常有胸痛及咳铁锈色痰","以中性粒细胞渗出为主的炎症"]
关于脾切除治疗遗传性球形红细胞增多症,下列哪种说法不正确() ["手术年龄以5~6岁以上为宜","术后可根本上消除球形红细胞现象","术后黄疸和网织红细胞增多可迅速消失","术后根除了发生“再生障碍危象”的威胁","过早切除脾可能影响机体免疫功能"]
肺癌高危人群的吸烟指数(每天吸烟支数×吸烟年数)应大于()。 ["100","200","300","400","500"]
遗传性球形红细胞增多症末梢血中的球形红细胞可占红细胞的百分比是多少() [">10%",">80%",">40~60%","60%~80%","20%~40%"]
下列哪一项不属于大叶性肺炎的特征() ["通常一周后病变消散","受累肺叶通气良好","有时肺发生纤维化","常由肺炎球菌引起","肺泡内充满纤维蛋白性渗出物"]
第一心音和第二心音产生机制有何不同?