574. Landmarks for gestational age by hCG and transvaginal sonography / What is the discriminatory zone? / What is an endometrial cast? / Sonographic criteria for abnormal pregnancy by TVUS November 3rd, 2008 by reuben in ectopic Back Top Tags: card 573. When does most fetal demise occur? / In symptomatic pregnant women with threatened abortion, what is the fetal loss rate if cardiac activity is verified at 8 weeks? / Define threatened miscarriage, inevitable, incomplete, complete (with caviat), missed abortion 575. First trimester bleeding ddx / Management of threatened miscarriage / Options for management of inevitable miscarriage / Advice to patients with threatened or inevitable miscarriage Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.