This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Placenta - Types and their complications, Subject name: Gynaecology & Obstetrics
[{'content': 'Which of the following measures The amount of fetal blood entering maternal circulation: \nSelect and explain. \nA. Kleihauer - Betke test, B. Singers test, C. APT test, D. Benedict test', 'role': 'user'}, {'content': 'Answer: A \nExplanation: To know the exact amount of blood in maternal circulation,KLEIHAUER - BETKE test (acid elusion test)is done which is a quantitative test To distinguish between maternal and fetal blood in cases of vasa pre APT TEST is done which is a qualitative test. Benedict test is used for checking reducing sugars in the urine', 'role': 'assistant'}]