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': 'Ideal time for screening of blood sugar for diabetes in a pregnant female is: September 2006 \nSelect and explain. \nA. 16-20 weeks, B. 20-24 weeks, C. 24-28 weeks, D. 12-16 weeks', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. C: 24-28 weeks The method employed for screening for DM is by using 50 gm oral glucose tolerance test without regard to time of day or last meal, between 24-28 weeks of pregnancy. A plasma glucose value of 140mg percent or that of whole blood of 130 mg% at 1 hour is considered as cut off point for consideration of a 100 gm (WHO-75 gm) glucose tolerance test.', 'role': 'assistant'}]