This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
Dawn phenomenon refers to: March 2013 
Select and explain. 
A. Early morning hyperglycemia, B. Early morning hypoglycemia, C. Hypoglycemia followed by hyperglycemia, D. High insulin levels
A: Early morning hyperglycemia
Answer: A: Early morning hyperglycemia 
Explanation: Ans. A i.e. Early morning hyperglycemia Impoant terms Dawn phenomenon: Glucose level rise in early morning Somogyi effect: Rebound hyperglycemia may appear after 1-24 hours after moderate to severe hypoglycemia