某护士为一淋巴肉瘤的病人静脉注射氮芥,病人感到局部明显疼痛,肿胀,回抽无回血,立即拔出针头,但局部仍痛,下列处理哪项正确( )
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
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