<prompt> Ideal time for screening of blood sugar for diabetes in a pregnant female is: September 200616-20 weeks20-24 weeks24-28 weeks12-16 weeks  <response>: 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. 