30岁,既往月经规律,停经48天,轻微下腹坠痛伴少许阴道流血3天就诊。妇科检查:阴道少量血液,宫颈口闭,子宫如50天妊娠大小,尿妊娠试验(+)。对该患者的处理应首选() ["立即刮宫","镇静休息","抗炎治疗","做B超检查","口服雌激素"]
关于自来水氟化的防龋效果,那项是错误的() ["恒牙龋减少50%~60%,乳牙龋减少40%~50%","恒牙无龋儿童数增加6倍","第一恒磨牙因龋缺失减少75%","上前牙邻面龋减少95%","邻面龋减少26%~45%,窝沟龋减少78%"]
男性患者,22岁,头痛、发热、全身酸痛,时有阵发性干咳血清肺炎支原体抗体阳性。应选用的治疗药物是() ["A.青霉素","阿莫西林","氯霉素","四环素","庆大霉素"]
25岁,停经50天,阵发性下腹痛伴阴道流血3天,加重2h就诊。妇科检查:宫颈口扩张,无组织堵塞,子宫如50天妊娠大小。最可能的诊断是() ["先兆流产","过期流产","难免流产","完全流产","习惯性流产"]
结核病人的痰,最佳的处理方法() ["吐在杯内蒸煮","下雪天时,痰吐在雪地","将痰吐在纸里,直接抛在火炉中烧掉","用化学药品消毒痰液","将痰深埋地下"]
溶栓并发症有()、()、()。