急性上消化道出血最常见的病因() ["溃疡病出血","应激性溃疡","食管静脉破裂出血","胃癌","胆道出血"]
MG患者在治疗过程中出现症状加重,呼吸困难,瞳孔缩小,唾液增多,腹痛,肌束颤动,可能是() ["反拗危象","肌无力危象","胆碱能危象","中毒性休克","急腹症"]
臀先露的指示点是() ["额骨","骶骨","肩胛","枕骨","髋骨"]
正常代谢中肾小管对HCO3-重吸收的主要部分在()。 ["远端小管","近端小管","髓袢","集合管","肾盂"]
对前列腺上皮内瘤变(PIN)的描述正确的是() ["高级别PIN基底细胞缺失","可以分为低级别、中级别和高级别PIN","低级别:PIN属于癌前病变","多发生在移行区","高级别:PIN属于癌前病变,并常伴发癌"]
癌抗原125(CA125)