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 1181041703 T1 Ectopic 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=1181041703 RD 2024/04/25 AB Ectopic pregnancy is one that occurs outside of the uterus and is the leading cause of first-trimester maternal obstetric morbidity. It can be asymptomatic or present with symptoms ranging from mild vaginal bleeding and lower abdominal pain to shock secondary to massive hemorrhage. Menstrual history may reveal a missed or recent abnormal menses. Pelvic examination may be normal or may include vaginal bleeding, cervical motion tenderness, or adnexal tenderness. An abnormally low or slowly rising hCG may be seen. Risk factors include use of an IUD, prior ectopic pregnancy, and a history of pelvic inflammatory disease, tubal ligation, and other abdominal or pelvic surgeries.