This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diabetes Mellitus, Subject name: Medicine
A patient of hypoglycemia fails to regain consciousness after blood glucose is restored to normal. The complication to be suspected is? 
Select and explain. 
A. Cerebral edema, B. Lacunar infarct, C. Post ictal state, D. Cerebral hemorrhage
A: Cerebral edema
Answer: A: Cerebral edema 
Explanation: Prolonged hypoglycemia can damage the blood brain barrier and lead to cerebral edema. This also explains hemiplegia sometimes seen in hypoglycemic patients. Post ictal state is seen after hypoglycemic seizures.