This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Antepaum Haemorrhage, Subject name: Gynaecology & Obstetrics
[{'content': 'Which of the following is a common cause of the coagulation failure in obstetrics ? \nSelect and explain. \nA. Gestational diabetes, B. Accidental hemorrhage, C. Placenta pre, D. Rupture of the uterus', 'role': 'user'}, {'content': 'Answer: B \nExplanation: CONSUMPTIVE COAGULOPATHY/ DIC IN OBSTETRICS In the accidental hemorrhage / abruptio placentae there is intravascular activation of clotting, secondary to a significant retroplacental bleed which leads to more procoagulant consumption. DIC is more likely with concealed hemorrhage because of higher intrauterine pressure The retroplacental clot triggers tissue thromboplastin factor which in turn triggers disseminated intravascular coagulation (DIC). CAUSES: Abruption Amniotic fluid embolism PPH HELLP syndrome Pre eclampsia/ eclampsia AFLP IUFD', 'role': 'assistant'}]