Case presentation: A teenage girl was hospitalized with complaints of diabetic ketoacidosis and new-onset type 1 diabetes. Medication history: No history of previous allergies to medications. The patient was given an intravenous infusion of regular insulin and intravenous fluids. Other history: The patient was allergic to pollen, refined flour, citrus fruits, and lactose and stayed away from them as much as possible. She was also not on any other medication other than aspart and glargine insulin.

The patient had no history of fever or joint pains. Discharge medications: On discharge, the patient was given regular and Neutral Protamine Hagedorn (NPH) insulin before breakfast and dinner. Two weeks later, the patient returned to the clinic, and her insulin regimen was changed to a basal-bolus insulin regimen consisting of aspart and glargine insulin. The patient later developed aโ€ฆ