吞钡检查对以下哪项诊断无价值() ["A．食管静脉曲张","B．胃溃疡","C．急性胃肠炎","D．胃癌","E．以上都不是"]
三腔二囊管拔管时间为() ["A．出血停止后24h","B．出血停止后48h","C．出血停止后72h","D．出血停止即可","E．以上都不是"]
有关大面积烧伤休克期输液，下列正确的是() ["A．晶体：胶体一般为0:5:1","B．维持尿量大于30ml/小时","C．有血红蛋白尿时，要用利尿剂","D．晶体液用生理盐水","E．为避免水中毒，不输葡萄糖盐水"]
简述现场搬运伤员的基本原则?
简述呼吸机的撤离条件?
脊柱、脊髓损伤伤员的搬运方法?
