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: Radiology
[{'content': 'True about antenatal doppler analysis is all except – a) Reduction in end diastolic flow is associated with poor out comeb) Reduction in EDF is associated with IUGRc) In normal gestation placental resistance is highd) S/D ratio is high in IUGRe) Investigation of choice in pregnancy \nSelect and explain. \nA. a, B. b, C. ce, D. ae', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Reduction in end diastolic flow and high S/D ration are associated with fetal compromise, IUGR and poor outcome.\nAs normal pregnancy progresses, placental blood flow increases due to reduction in placental vascular resistance.\nDoppler ultrasound is not the routine investigation of choice in pregnancy. It has specific indications. Transvaginal USG is the procedure of choice.', 'role': 'assistant'}]