RT Book, Section
A1 Dooley-Hash, Suzanne
A1 Knoop, Kevin J.
A2 Knoop, Kevin J.
A2 Stack, Lawrence B.
A2 Storrow, Alan B.
A2 Thurman, R. Jason
SR Print(0)
ID 1181041724
T1 Failed Intrauterine Pregnancy
T2 The Atlas of Emergency Medicine, 5e
YR 2021
FD 2021
PB McGraw-Hill
PP New York, NY
SN 9781260134940
LK accessemergencymedicine.mhmedical.com/content.aspx?aid=1181041724
RD 2021/11/30
AB Fetal  viability  may  be  in  question  for  some  pregnant  patients  presenting  to  the  ED.  Conservative  transvaginal  US  diagnostic  criteria  for  a  failed  IUP  include  a  crown-rump  length  of  7  mm  with  no  cardiac  activity;  a  mean  GS  diameter  of  ≥  25  mm  and  no  visible  embryo;  no  heartbeat  ≥  2  weeks  after  a  visualized  GS  without  a  yolk  sac;  no  heartbeat  ≥  11  days  after  a  prior  documented  GS  with  a  yolk  sac;  and  no  heartbeat  ≥  2  weeks  after  a  prior  documented  GS  without  a  yolk  sac.