This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Fetus, Subject name: Gynaecology & Obstetrics
[{'content': 'True statement about symmetrical lUGR with respect to asymmetrical lUGR : \nSelect and explain. \nA. Worse prognosis, B. Late onset, C. Brain sparing effect, D. More common', 'role': 'user'}, {'content': "Answer: A \nExplanation: Intrauterine growth retardation refers to those fetuses that have failed to achieve their own genetic growth potential. Features of symmetrical IUGR: Uniformly small Ponderal index(Bih weight/Crown heel length) -Normal HC:AC and FL:AC Ratios-Normal Etiology: Genetic disease or Infection,Early onset Severe HTN Intrinsic to fetus. Early onset. All organs equally affected HC/AC and FL/AC normal Poor neonatal prognosis Features of Asymemetrical IUGR Head larger than Abdomen Ponderal Index-Low HC/AC and FL/AC ratios- Elevated Chronic placental insufficiency Extrinsic to fetus Late onset Usually uncomplicated having Good prognosis. REF: DC DUTTA'S TEXT BOOK OF OBS, 9th edition,page 432", 'role': 'assistant'}]