A 79-year-old female patient presented to the ER severe abdominal pain. He is drowsy, pulse 127 beats/min, blood pressure is 91/59 mmHg. He has very tender abdomen with tender, red and irreducible inguinal mass. You suspect strangulated femoral hernia. Her ABG as follow: pH 7.1, PaO2 90 mmHg, PaCO2 25 mmHg. HCO3 10 mmHg and base deficit of -10 mmol/L. What is the likely acid-base abnormality, if there is one?