This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Twin Pregnancy, Molar Pregnancy, Gestational Trophoblastic disease and contraception in special situations (Sour Grapes!), Subject name: Gynaecology & Obstetrics
[{'content': 'A patient treated for infeility, was diagnosed with twin pregnancy at 6 weeks gestation. On her follow up USG at 12 weeks, there was a single developing live fetus. Fuher management is? \nSelect and explain. \nA. Advice MTP as the second twin is at increased risk of aboing, B. Continue pregnancy like a normal singleton pregnancy, C. Watch for coagulation defect in mother, D. Chorionic villous sampling', 'role': 'user'}, {'content': 'Answer: B \nExplanation: This is a case of vanishing twin. This may occur in upto 1 out of 8 twin pregnancies. When a twin dies in the first trimester it has no significant effect on the mother or the surviving fetus. The pregnancy should therefore be continued as a normal singleton pregnancy. In a slightly more advanced gestation, fetal death may also go unnoticed until delivery and may be compressed appreciably- fetus compressus , or may be flattened remarkably -fetus papyraceus.', 'role': 'assistant'}]