March 7, 2019

Background: 1st trimester vaginal bleeding and abdominal pain is a common complaint seen in the ED.  As EM physicians it is important to make the diagnosis of ectopic pregnancy early in the clinical course as it can prevent rupture, difficulty with future fertility, and even death.  Typically, when non-ruptured, hemodynamically stable, ectopic pregnancy is diagnosed, our Ob/Gyn colleagues get consulted and the usual first-line treatment is methotrexate initiated in the ED with 24 - 72hours follow-up in an ideal world. Unfortunately, this does not always happen, and some patients will return to the ED for increased pain. It is important to be aware of methotrexate outcomes and have suspicion for failure of methotrexate in patients returning to the ED.