Case Presentation: A 71-year-old Caucasian female with history of atrial fibrillation, gastroesophageal reflux disease, chronic kidney disease stage 3a was admitted for 2-week history of nausea, vomiting, and decreased urinary output. The patient had a recent admission for atrial fibrillation with rapid ventricular rate without causative etiology identified and was discharged on amiodarone and apixaban. [...]