These agents will improve your visualization of the vocal cords and prevent the patient from vomiting and aspirating gastric contents.
这些药物能改善声带的可视度，防止患者呕吐及吸入胃内容物，使插管更加便利。
2
Other pharmacologic agents include the H2-receptor blockers (ranitidine or famotidine), which inhibit gastric acid production and decrease gastric volume.