利多卡因血内浓度多少时对室性心律失常有治疗作用() ["1~5pg/ml","2~7pg/ml","8~9pg/ml","10~11pg/ml","12~15pg/ml"]
病灶侧单眼一过性黑矇、失明见于() ["椎-基底动脉系统短暂性脑缺血发作","颈内动脉系统短暂性脑缺血发作","大脑中动脉血栓形成","大脑前动脉血栓形成","大脑后动脉血栓形成"]
病历摘要:患者男性,26岁,半夜起床时感双下肢乏力,今晨四肢乏力,不能起床伴轻度头痛,无头晕、恶心呕吐。二周前鼻塞、发热;病前大量饮酒史。查体:神志清楚,对答切题,颅神经检查(-),肌张力低,肌力Ⅱ级,腱反射迟钝,病理征(-),脑膜刺激征(-)。关于急性脊髓炎,哪些是正确的() ["A.以上胸髓最常见","以腰髓最常见","上升性脊髓炎常因累及呼吸肌导致而死亡","上升性脊髓炎瘫痪由下肢迅速波及上肢,甚至呼吸肌,称为Landry麻痹","CSF压力明显升高,但细胞数与蛋白正常或轻度增高","MRI典型改变为病变部位脊髓增粗,多发片状病灶","早期即尿便潴留,称为反射性神经源性膀胱","主要以皮质类固醇激素及免疫球蛋白治疗"]
慢性阻塞性肺病合并呼衰时,在治疗过程中易发生的电解质紊乱类型是:() ["低钠血症","高钾、低氯血症","低钙血症","低钾、低氯血症","高氯血症"]
抗菌药物疗程因感染不同而异,一般宜用至体温正常和症状消退后() ["24~36h","36~48h","48~72h","72~96h","96~120h"]
直肠癌诊断要点