[名词解释] 痛点

硬膜外阻滞 女，68岁，有胆囊癌病史，术后行放射治疗，根据所示图像，最可能的诊断是() ["A．右肾未见异常","B．右侧肾癌","C．右肾淋巴瘤","D．右肾转移癌","E．右肾放射性损伤改变"] 下列哪项检查最常用于明确菌痢的诊断() ["A．粪便培养细菌","B．血液培养细菌","C．骨髓培养","D．粪便涂片染色镜检","E．粪便培养致病菌"] 超前镇痛 寻找输尿管口的标志是() ["A．尿道嵴","B．尿道内口","C．膀胱三角","D．输尿管间襞","E．膀胱垂"] 痛点