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HardEndocrinologyDiabetic Ketoacidosis (DKA)mrcem sbamrcp part 1ukmlapaneprescribing safety assessment

A 40-year-old man with type 1 diabetes presents to the Emergency Department feeling unwell with nausea, vomiting, abdominal pain, and marked thirst. His capillary blood glucose is 25 mmol/L, and urine ketones are ++++. His respiratory rate is 28/min and deep (Kussmaul breathing). His pH on venous blood gas is 7.15. What is the most crucial initial management step, alongside fluid resuscitation?

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