A 72-year-old man with chronic atrial fibrillation and CKD stage 3 is found to have a heart rate of 110 bpm at rest. He is currently on diltiazem. His digoxin level is 2.8 ng/mL (therapeutic range 0.8-2.0). He reports nausea, visual disturbances, and palpitations. Which of the following is the most likely diagnosis?

  1. A)Acute decompensated heart failure
  2. B)Digoxin toxicityGABARITO
  3. C)Thyroid storm
  4. D)Inadequate rate control of atrial fibrillation
  5. E)Sepsis

Explicação

Digoxin toxicity presents with GI symptoms (nausea, vomiting), CNS symptoms (visual disturbances, confusion), and cardiac arrhythmias. Risk factors include renal impairment, electrolyte abnormalities (especially hypokalemia), and drug interactions (diltiazem i... Ver explicação completa e trilha adaptativa →

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