This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gynaecological Diagnosis, Subject name: Gynaecology & Obstetrics
[{'content': 'Diagnosis of IUGR in Ultrasonography is based on the follow ing parameters except- \nSelect and explain. \nA. Abdominal circumference, B. Elevated S/D ratio, C. Decreased placental Doppler ratio, D. Reduction in the fetal facial fat stores', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Abdominal circumference Ultrasound Doppler parameters for diagnosis of IUGRo Elevated systolic/ diastolic ratio (S/D) and / or presence of diastolic notch.o Increased diastolic velocity in middle cerebral artery.o Decrease placental Doppler ratio.o Ponderal index: Fetal weight (g)/ 3 less than 10th percentile.o Decreased fetal facial fat stores.", 'role': 'assistant'}]