Question

A $29$-year-old woman is brought to the emergency department by her husband due to severe agitation, confusion, and a pounding heartbeat. She has a history of Graves disease but reports discontinuing all her medications four months ago because she felt well. Two days ago, she developed a severe sore throat, cough, and subjective fever.

Vital signs are temperature $40.1^\circ\text{C}$ ($104.2^\circ\text{F}$), blood pressure $156/64\text{ mm Hg}$, pulse $168/\text{min}$ and irregularly irregular, and respirations $28/\text{min}$.

On physical examination, the patient is delirious, profusely diaphoretic, and uncooperative. She has prominent proptosis and a diffusely enlarged, non-tender thyroid gland with an audible bruit. Neuromuscular examination reveals marked hyperreflexia and a fine resting tremor. An electrocardiogram confirms atrial fibrillation with a rapid ventricular response.

Following initial airway stabilization and intravenous fluid resuscitation, arrange the following pharmacologic interventions in the required chronological sequence for the definitive management of this patient's endocrine emergency.