谢某,44岁,于13:30行阑尾切除术21:00时病人主诉下腹胀痛,视诊:下腹膀胱区隆起;叩诊:耻骨联合鼓音,病人存在的最主要健康问题是( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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