Gestational sac is seen by TVS at-: (A) 5 weeks, (B) 6 weeks, (C) 7 weeks, (D) 8 weeks
Answer is A. Ans. is 'a' i.e., 5 weeks [Ref: Dutta's Obs 7th/ep. 68}TVS showso Gestational sac & yolk sac - 5th weeko Fetal pole & cardiac activity - 6th weeko Embryonic movements - 7th weeko Fetal gestational age is best determined by CRL between 7th to 12th weeks (variation +/- 5 days)o Doppler effect of ultrasound can pick up heart rate by 10lh week.