患者,男性,20岁。右上腹被锐器刺伤,剧烈疼痛,呼吸36次</min,脉搏100/min,血压90/65mmHg,诊断不明时禁用( )。
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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