28岁已婚妇女,平素月经规则,周期均为28日。末次月经为2011-5-7,于2011-6-14来院就诊,主诉为“少量阴道血性分泌物3日”,无腹痛。本患者首先应检查() ["A.尿hCG检查","基础体温检查","尿常规检查","宫颈黏液涂片","诊断性刮宫"]
鼓膜的上皮层来源于() ["外胚层","中胚层","内胚层","第二腮弓","外中胚层"]
某工厂某病连续4年的患病率分别为7%、9%、8%和10%,则该病4年平均患病率为() ["8.5%","7%","8%","9%","资料不全不能计算"]
28岁已婚妇女,平素月经规则,周期均为28日。末次月经为2011-5-7,于2011-6-14来院就诊,主诉为“少量阴道血性分泌物3日”,无腹痛。假设该妇女已妊娠,确诊宫内妊娠应选择() ["A.最早在停经4周时行阴道B型超声查看宫内妊娠囊","最早在停经4周时行阴道B型超声检查看是否妊娠囊内有胚芽和原始心管搏动","最早在停经5周时行阴道B型超声检查看是否妊娠囊内有胚芽和原始心管搏动","行妇科检查看子宫是否增大变软","行宫颈黏液检查"]
肾衰病人下列哪个物质相对缺乏() ["钙","钾","镁","磷酸盐","复方氨基酸"]
紧张性木僵与抑郁性木僵如何鉴别?