a 17-year-old man has type 1 diabetes for 9 years, has progressive abdominal pain, nausea, vomiting, and fever for 3 days. He was not compliant to insulin given his poor oral intake and his fear hypoglycemia. On examination he has altered level of consciousness, HR 110/min, BP 110/75 mmHg, Temp 37.9 C, and respiratory rate 24 breaths/min. His abdomen is diffusely tender. Dry mucous membranes. Unremarkable cardiovascular and chest examination. His investigations show random blood glucose 450 mg/dL, and positive ketones on urine dipstick Which of the following blood gases set is the most likely to be seen in this patient?