This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Medical & Surgical Illness Complication Pregnancy, Subject name: Gynaecology & Obstetrics
Macrosomia is a result of: 
Select and explain. 
A. Maternal hyperglycemia, B. Fetal hyperglycemia, C. Fetal hyperinsulinemia, D. Maternal hyperinsulinemia
A: Maternal hyperglycemia
Answer: A: Maternal hyperglycemia 
Explanation: Ans. is a, i.e. Maternal hyperglycemiaRef. High Risk pregnancy, Fernando Arias 4//e, p 259The basic cause of macrosomia is maternal hyperglycemia.