A 25-year-old man with diabetic ketoacidosis is admitted. He is drowsy, blood pressure 95/60 mmHg, pulse 120 beats per minute and capillary ketones 6 mmol/L. What is the most appropriate initial fluid and insulin management?AStart insulin infusion immediately and give 500 mL 5 percent dextrose over 1 hourBGive 1 litre 0.9 percent sodium chloride over 1 hour, then commence a fixed-rate intravenous insulin infusionCGive 1 litre 5 percent dextrose over 1 hour and withhold insulin until ketones are less than 3 mmol/LDStart variable-rate insulin infusion based on capillary glucose without fluidsEGive bolus intravenous insulin 10 units without fluidsCheck my answer