下列哪项不是引起婴儿溢乳的原因()。 ["胃呈水平位","胃酸分泌少","贲门括约肌较松弛","幽门括约肌发育好","喂奶时吞咽较多空气"]
阻塞性睡眠呼吸暂停低通气综合征常见的狭窄和阻塞的部位是() ["A.鼻和鼻咽","B.气管和支气管","C.口咽和软腭","D.舌根部","E.喉咽部"]
2岁男孩,发现腹部较大2个月,查体见脸色苍白,肝脾肿大,最不可能的疾病是() ["地中海贫血","缺铁性贫血","急性白血病","再生障碍性贫血","遗传性球形红细胞增多症"]
关于叶酸缺乏的病因,应除外() ["慢性腹泻","长期使用氨甲喋呤","长期服用广谱抗生素","未经加热的鲜牛乳喂养","婴儿单纯乳制品喂养未及时添加辅食"]
呼气末正压通气(PEEP)适用于以下哪种患者()。 ["肺水肿","严重的心功能不全","低血容量","气胸","胸腔少量积液"]
对肾小管病变有较大意义()有助于尿路恶性肿瘤诊断()肾移植患者出现急性排斥反应之前明显升高()