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: Gynaecology & Obstetrics
[{'content': 'All of the following are true of placenta previa except:a) Postpartum hemorrhage infrequentb) First trimester bleeding is not uncommonc) Premature labour is commond) Higher incidence in women with lower segment cesarean sectione) Malposition and malpresentation are common \nSelect and explain. \nA. ac, B. a, C. ab, D. bc', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Placenta previa is a cause of APH which means bleeding from or into the genital tract after the 28th week of pregnancy i.e. it is not a cause of first trimester bleeding. (i.e. option b is incorrect).\nAs discussed earlier, previous cesarean section increase the chances of placenta previa in next pregnancy (i.e. option d is correct).\nAs far as other options are concerned - they are all complications of placenta previa.\nComplications of placenta previa\nA. Maternal\n\nAntepartum, Intrapartum and Postpartum=\xa0Hemorrhage\nMalpresentation\nCord prolapse\nRetained placenta\nPreterm labour\nPremature rupture of membranes\nSlow dilatation of cervix\n\nB. Fetal\n\nAsphyxia\nBirth injuries\nLow birth weight\nCongenital malformation\nIntrauterine death', 'role': 'assistant'}]