碰到呕吐病人，应将其头部侧向一边，以防呕吐物返流人呼吸道引起窒息。
Come up against vomitive patient, should its head side direction at the same time, in case puke returns respiratory tract drifting a person to cause asphyxial.
在造影前，要先在你的喉咙上喷麻醉剂进行局部麻醉以防止呕吐。
Your throat will be sprayed with a local anesthetic before the test begins to numb your throat and prevent gagging.
麻醉前要禁食，以防麻醉、手术时发生呕吐、误吸等合并症。
To fast before anesthesia and surgery in case vomiting, aspiration and other complications happen.
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