You may have your throat sprayed with a local anesthetic before the test begins and given medication through a vein to help you relax during the examination.
2
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.
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