Which of the following is NOT a treatment for DKA?

Oral rehydration solutions are not a treatment for diabetic ketoacidosis (DKA) because DKA is a severe complication of diabetes that often necessitates more intensive medical intervention than what oral solutions can provide. In DKA, patients are typically unable to hydrate orally due to vomiting, weakness, or altered mental status. Therefore, intravenous fluids are essential to restore hydration and correct electrolyte imbalances effectively.

In contrast, potassium replacement, insulin administration, and fluid therapy are critical components in managing DKA. Potassium replacement is necessary due to the shifts in potassium that occur with acidosis and insulin treatment. Insulin administration is fundamental in reducing blood glucose levels and halting the production of ketones that exacerbate the condition. Fluid therapy is vital for rehydrating the patient and diluting the excess glucose in the bloodstream. Each of these treatments directly addresses the physiological derangements occurring in DKA, unlike oral rehydration solutions, which are less impactful in this severe medical emergency.