This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Physiological changes during Pregnancy, Subject name: Gynaecology & Obstetrics
[{'content': 'The following are related to fetal souffle except. \nSelect and explain. \nA. It is soft blowing murmur synchronous with the fetal heart sounds, B. It is due to rush of blood through the compressed umbilical arteries, C. It is heard in about 15% cases, D. When present is diagnostic of pregnancy', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is b, i.e. It is due to rush of blood through the compressed umbilical arteriesRef. Dutta 9/e, p 64Funic or fetal souffle is due to rush of blood through the umbilical arteries. It is a soft, blowing murmur synchronous with the fetal heart sounds.', 'role': 'assistant'}]