USG can detect gestational sac earliest at-: (A) 5 - 6 weeks, (B) 7 - 8 weeks, (C) 8 - 10 weeks, (D) 10 - 12 weeks
Answer is A. Ans. is 'a' i.e., 5-6 weeks [Ref: Sutton 7th/ep. 1041)o The gestational sac can be visualized as early as 41/2 weeks by transvaginal USG and 5 weeks by transabdominalUSG