Abnormal OB Midterm Questions with correct answers

When is the conceptus phase? Correct Answer-3-5 weeks When is the embryonic phase? Correct Answer-6-10 weeks When is the fetal phase? Correct Answer-10-12 weeks What can be seen on U/S: 0 - 4.3 weeks? Correct Answer-No U/S findings What can be seen on U/S: 4.3 - 5 weeks? Correct Answer-Possible small G.S, possible DDSS, possible IDSS What can be seen on U/S: 5.1 - 5.5 weeks? Correct Answer-G.S *should* be visible What can be seen on U/S: 6.5 weeks? Correct Answer-CRL *should* be ~5mm What can be seen on U/S: 7 - 8 weeks? Correct Answer-CRL is between 11-16mm, Cephalad and caudal poles can be identified When the MSD measures __ a Y.S should be visible? Correct Answer-20mm When the MSD measures __ an embryo should be visible? Correct Answer-25mm