女性，22岁，咳嗽、发热1周、尿少、水肿2天急诊。查体：BP 150/90mmHg，贫血外貌，颜面水肿，双肺未闻及干湿啰音。血BUN22mmol/L、Cr450μmol/L。该患者酸碱平衡失调类型是

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