The patient is a 73-year-old woman who presents to the urgent care center with palpitations she says she first noticed 12 days ago. There is no associated chest pain, shortness of breath, abdominal pain, or paresthesias. The patient states she takes warfarin, with recent INR of 2.2. Her personal medical history includes atrial fibrillation, and there is a history of heart disease within the family.

Upon examination, you find:

  • General: A&O, NAD, WNWD
  • Lungs: CTAB
  • Cardiovascular: RRR without m,r,g
  • Abdomen: Soft and NT, without r/r/g
  • Ext: No peripheral edema, pulses are 2+ and equal in all extremities

View the ECG taken and consider what the diagnosis and next steps would be. Resolution of the case is described on the next page.

A 73-Year-Old Woman with a 12-Day History of Palpitations
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