Abdominal Pain, Altered Mental Status in a 60-year-old Woman

VIDEO: Patient reports progressive weakness x1 month. Acute abdominal pain/emesis began earlier in the day. What's in your differential dx?


 

Patient reports feeling weak x1 month; husband describes low-grade fevers. Acute abdominal pain, emesis began this morning; no diarrhea. PMH: recent dx of factor V Leiden; no medications. Vitals: Temp: 97.4oF;HR: 76 bpm, RR: 16, BP: 124/63. Review video of ED interview.

 

What's your diagnosis?