孕31周早产儿,体重1400g,生后不久发生呼吸窘迫,暂停头罩吸氧后血气结果为pH7.20,PaO45mmHg,PaCO268mmHg,BE-3。以下哪项处理最正确() ["鼻塞CPAP","机械通气","给予氨茶碱兴奋呼吸","加大头罩给氧,浓度8L/min","5%碳酸氢钠纠正酸中毒"]
强迫性意向
小儿指纹色紫红,其证是() ["瘀热内结","外感风寒","外感风热","内有虚寒","邪热郁滞"]
下列哪一项不是乳牙拔除适应证() ["牙冠破坏严重,无法修复的乳牙","替换期,牙根吸收1/3以上,不能做根管治疗者","根尖周炎症侵及恒牙牙胚,或恒牙牙根已形成3/4或恒牙牙胚顶端牙槽骨已消失","外伤不能保留的乳牙","Ⅱ度松动的乳牙"]
含硫葡萄糖酸钙盐、硫化物的() ["头发漂白剂","皮肤漂白剂","持久性冷烫剂","脱毛剂","生发水"]
发生肠粘连后在()()()条件下可诱发肠梗阻的发生。