男,34歲,60kg,燒傷后3小時入院;呼吸深大,吸氧5L/min,查血氣示pH7.35、PaO2137.2mmHg、PaCO210.5mmHg、BE-16.8mmol/L、[HCO3-]5.7mmol/L,按下列哪項液體進行糾正()