1. For control group, the tube was lubricated with liquid paraffin; for experimental group, two drops of Tetracaine Hydrochloride Jelly were dripped into the nostil of tubing side five minutes before, the remaining jelly was lubricated to the tube.
将100例术前需置胃管的病人随机分为对照组和观察组，对照组在操作中使用液状石蜡充分润滑胃管，观察组在置管前5 min先滴2滴利宁凝胶于置管侧鼻孔内，然后将剩余凝胶润滑胃管，观察两组病人置管时恶心、呛咳反应、鼻咽部黏膜损伤的发生率及插管成功情况。