USG can detect gestational sac earliest at-
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
5 - 6 weeks
7 - 8 weeks
8 - 10 weeks
10 - 12 weeks
Advanced Fetal Ultrasonography and Therapy