A型题
33.产妇,37岁,G1P0,胎膜已破3天,临产2天,胎动消失半天,由乡卫生院转来。查体:体温39.9℃,脉搏124次/分,血压12.0/9.0kPa(90/60mmHg),胎位LOA,先露S+2,胎心率110次/分,胎儿监测晚期减速,宫体压痛,尿色清,宫口开大2cm。实验室检查:白细胞2.2×109/L,中性0.95,淋巴0.05。产后24小时,产妇寒战,高热,体温高41℃,心率140次/分,血压6.0/2.0kPa(45/15mmHg),子宫压痛,下腹反跳痛,用升压药无效。即刻处理下列哪项最恰当