肺气肿()
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
男,30岁,因车祸引起右胸部损伤,极度呼吸困难,紫绀,并有严重的皮下气肿,判断为张力性气胸。急救应立即( )。
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