黄斑“樱桃红”征是下述哪种疾病的典型体征() ["视网膜中央静脉阻塞","视网膜分支静脉阻塞","视网膜中央动脉阻塞","视网膜分支动脉阻塞","睫状视网膜动脉阻塞"]
女,10个月。阵发性哭吵4小时,呕吐3次急诊入院。查体:安静,发育好,腹平软,右下腹有空虚感,脐右上扪及一软块,肛指检查有少量黄软便。诊断首先应考虑的是()。 ["肠蛔虫症","肠痉挛","急性肠套叠","肠道粪石","肠扭转"]
苯乙双胍引起酮尿最常见() ["尿糖++++,酮体阴性","尿糖++++,酮体强阳性","尿糖阴性,酮体阳性","尿糖+,酮体阳性","尿糖+,酮体阴性"]
中度营养不良的临床特点是什么?
对于风湿热预后的估计和治疗的选择具有重要意义的是() ["A.发热时间长短","B.关节炎的严重程度","C.是否伴有心脏炎","D.ASO滴度高低","E.血沉增快程度"]
摩尔吸光系数