腹部触诊时,左下腹发现较粗索条状包块,轻压痛,应采取什么简单方法鉴别是肿块还是乙状结肠粪块?
男性,22岁,血友病A患者,行“胃大部切除术”,术中伤口渗血,此时最好用什么止血() ["新鲜全血","冷沉淀","冷冻血浆","血小板制剂","止血芳酸(PAMBA)"]
患者,女。近3年来常见经间期出血,量少色红,腰酸头晕,大便干结,尿黄,舌红,脉细略数。当治以() ["清热凉血","滋阴清热","滋阴止血","凉血止血","滋阴养血"]
钠石灰中加入硅酸盐的目的是() ["增加硬度","增加吸收量","降低硬度","增加活性","降低活性"]
患者男,50岁,|56缺失,拟行可摘局部义齿修复,|347做基牙,行支托凹预备7最适宜采用何种卡环()。 ["A.杆卡","圈卡","三臂卡环","上返卡环","下返卡环"]
体检时正常成人的肝脏是否可触及?如何鉴别肝肿大和肝下垂?