Fetal cardiac activity can be detected by vaginal USG by howmany weeks after LMP
Ans C Ref: Williams Obstetrics page 350First trimester evaluation With transvaginal scanningGestational sac reliably seen in uterus by 5 wksFetal echoes and cardiac activity by 6 wksCardiac motion typically observed when embryo is reached 5mm in length Sheila Balakrishnan-577Gestational sac - 4 1/2 wksYolk sac - 5wksFetal node - 5 1/2 wksFetal heart - 6wks
4 wks
5 wks
6 wks
8 wks
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