Problem:
A 38-year-old woman presents with headaches, fatigue, and increased sweating. A history of present illness reveals a pounding and fluttering sensation in her chest. The fluttering sensation occurs in episodes, with each episode lasting 1 to 2 minutes. She denies any stressors in her life. Her medical history includes hypothyroidism treated with replacement therapy. She does not drink coffee or alcohol. Her vital signs are blood pressure 110/70 mm Hg, heart rate 96 bpm, respiratory rate 17 breaths/min, and temperature 98.6 °F (37 °C). The findings of the cardiac examination are unremarkable. The results from a complete blood count, blood glucose, and electrolytes are normal. A 12-lead ECG shows only sinus tachycardia. What is the cause of her signs and symptoms? Looking for Assignment Help?
A. Migraine B. Heart failure with reduced ejection fraction (HFrEF) C. First-degree AV block D. Incorrect medication dose