产后子宫恢复至非孕期大小约需() ["3周","4周","5周","6周","7周"]
关于直肠肛管的解剖,下列哪项是不正确的()。 ["齿线以上是黏膜,齿线以下是皮肤","齿线以上主要是直肠上、下动脉供应","齿线以下的静脉从属直肠下静脉丛","齿线以下的淋巴液主要回流到腹股沟淋巴结","齿线以上的直肠黏膜受阴部内神经支配"]
发热,干咳无痰,气逆而喘,咽干鼻燥,胸满胁痛,心烦口渴,苔薄白而燥,舌红赤,治宜() ["杏苏散","桑杏汤","麻杏石甘汤","清燥救肺汤","桑菊饮"]
肝性脑病的脑性毒物中,下列哪项不正确() ["氨","芳香族氨基酸","γ-氨基丁酸","蛋氨酸的代谢产物-硫醇","中链脂肪酸"]
产后72小时内血容量增加() ["1%~5%","5%~10%","10%~15%","15%~25%","25%~30%"]
腹部听到血管杂音有何临床意义?