A 50-year-old man was brought to ER. Blood pressure is 90/50 mmHg, heart rate 120 beats/min, respiratory rate 35/min, and his temperature is 40C. He was found to have left foot cellulitis. ABG: PH 7.2 (7.35-7.45), PCO2 25 mmHg (35-45), HCO3 10 mEq/L (22-26), Na 148 mEq/L (135-145), K 2.5 mEq/L (3.5-5), Cl 103 (96- 106) mEq/L. What is the acid-base status?