A 23-year-old with type 1 diabetes presents with nausea, abdominal pain and polyuria. Capillary ketones are 4.1 mmol/L, venous pH 7.22, glucose 24 mmol/L. Which is the correct immediate management priority?AStart IV insulin infusion first, then fluids as neededBAdminister IV fluids (0.9% saline) and potassium replacement as indicated, then fixed-rate IV insulinCGive IV bicarbonate urgentlyDStart long-acting insulin onlyEWithhold insulin until glucose is <15 mmol/LCheck my answer