Please help me how to approach this type of questions: A babysitter brings a 9-year-old girl to the ER. She is unarousal. Labs are ordered & an ABG is drawn. The ABG results are as follows: 7.49/42/85/39/96. What acid base disorder does the child have? A. Metabolic acidosis B. Metabolic alkalosis C. Respiratory acidosis D. Respiratory alkalosis Thanks so much!!!