腹痛性质特点。
急性横贯性脊髓炎最少见的发生部位是() ["高位颈髓","颈膨大","胸髓","腰膨大","圆锥"]
左枕前位分娩,当胎肩径进入骨盆入口左斜径时,胎头的动作是() ["着冠","拨露","复位","仰伸","外旋转"]
左室功能不全时PCWP的改变为() ["高于LVEDP","低于LVEDP","等于LVEDP","与LVEDP无一定关系","与LVEDP负相关"]
女,57岁,主诉:牙龈反复肿痛2个月。检查:多数牙的牙龈肥大增生,牙周溢脓,牙齿松动、移位,全身患有高血压、心脏病、神经衰弱。若此病人已排除糖尿病与牙龈增生、肥大的原因最相关的是长期服用()。 ["A.消心痛","硝基吡啶","消炎痛","苯妥类钠","环霉菌素"]
无菌术