Q179. A teenage girl with known type 1 diabetes mellitus, currently on insulin therapy, presents to the outpatient department with severe dehydration after skipping her last insulin dose. Her random blood glucose is markedly elevated at 720 mg/dL, and her serum sodium is 126 mEq/L and serum potassium is 4.3 mEq/l. Which of the following is NOT appropriate as part of her management?