最常见的脑瘤为() ["脑膜瘤","胶质细胞瘤","脑转移瘤","垂体腺瘤","神经膜瘤"]
拔牙创血凝块的形成时间是() ["5分钟","15分钟","30分钟","45分钟","60分钟"]
小额系统按账号查询,交易码是()。 ["6481","6483","6486","6487"]
()是85%的艾滋病患者的主要致死原因。
初产妇,26岁。妊娠40周,规律宫缩8小时入院。查:髂棘间径25cm,骶耻外径20cm,坐骨结节间径7.5cm。枕右前位,胎心134次/分,肛查宫口开大4cm。S+3。1小时后产妇呼叫腹痛难忍,检查宫缩1~2分钟一次,持续45秒,胎心102次/分,子宫下段压痛明显。肛查宫口开大5cm,胎头"O"。此时最可能的诊断是() ["A.先兆子宫破裂","重型胎盘早剥","协调性子宫收缩过强","不协调性子宫收缩过强","不协调性子宫收缩乏力"]
小儿超声检查前有什么需要注意的事项?