<prompt> At what level of b-HCG is it that normal pregnancy can be earliest detected by TVS:500 IUm11000 IUm11500 IUm12000 IUm1  <response>: Ans. is b i.e. 1000 IUm1 PhCG level MiUmi Structure visible TVSTAS 1000 - 1200 Gestational sac TVS 6000 Gestational Sac TAS 7000 Yolk sac TAS 11000 Embryo TAS 