A 23-year-old female presents with vaginal bleeding and lower abdominal pain.  She is approximately 6 weeks pregnant by date and has a positive bedside UCG.  Her vitals are as follows: BP 88/46, HR 122, RR 24 and T 37.1C.  Her physical exam reveals moderate lower abdominal tenderness with guarding.  She has mild, nonclotted blood in the vaginal vault but bimanual examination is limited due to pain.  You are concerned about an ectopic pregnancy and perform a bedside ultrasound...

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