Which of the following is a common feature of an insulinoma? a) Hypoglycemia b) Hyperglycemia c) Polyuria d) Ketosis Answer: a) Hypoglycemia Explanation: Insulinomas are neuroendocrine tumors of the pancreas that produce excessive insulin, leading to hypoglycemia. Symptoms include fasting hypoglycemia, confusion, diaphoresis, and palpitations.
