產(chǎn)婦,37歲,G1P0,胎膜已破3天,臨產(chǎn)2天,胎動消失半天,由鄉(xiāng)衛(wèi)生院轉(zhuǎn)來。體檢:體溫39.9℃,脈搏124次/分,血壓12.0/9.0kPa(90/60mmHg),胎位LOA,先露+2,胎心率110次/分,胎兒監(jiān)測晚期減速,宮體壓痛,尿色清,宮口開大2cm。血象:白細(xì)胞2.2×;;109/L,中性0.95,淋巴0.05。產(chǎn)后24小時(shí),產(chǎn)婦寒戰(zhàn),高熱,體溫高41℃,心率140次/分,血壓6.0/2.0kPa(45/15mmHg),子宮壓痛,下腹反跳痛,用升壓藥無效,即刻處理哪項(xiàng)最恰當(dāng)()