A school-aged patient was recently diagnosed with type I diabetes mellitus. What symptom did the patient’s parents most likely report?

Choice A rationale Urinating only once or twice a day is not a typical symptom of type I diabetes mellitus. In fact, frequent urination is a common symptom of diabetes. Choice B rationale Rapid weight gain is not typically associated with type I diabetes mellitus. On the contrary, unexplained weight loss is a common symptom. Choice C rationale Refusing to eat favorite meals is not a typical symptom of type I diabetes mellitus. Changes in appetite can occur in various conditions, but they are not specific to diabetes. Choice D rationale Drinking more fluids than usual, also known as polydipsia, is a common symptom of type I diabetes mellitus. This is often accompanied by polyuria (frequent urination) due to high blood sugar levels.