Soru

While staffing the cardiac intensive care unit, a physician assumes care of a $66$-year-old male admitted directly from the prehospital setting. Paramedics were called after the patient experienced the sudden onset of crushing retrosternal chest pain and diaphoresis while resting at home. A prehospital $12$-lead electrocardiogram demonstrated marked ST-segment elevations in leads II, III, and aVF, with reciprocal depressions in leads I and aVL. Upon arrival, the patient appears ashen and complains of persistent chest discomfort and profound lightheadedness. Vital signs are temperature $36.8^\circ\text{C}$ ($98.2^\circ\text{F}$), blood pressure $82/50\text{ mm Hg}$, heart rate $54\text{/min}$ (sinus rhythm), and respiratory rate $16\text{/min}$. Pulse oximetry is $96\%$ on ambient air. Physical examination reveals elevated jugular venous pressure with prominent x and y descents. The lung fields are completely clear to auscultation bilaterally. Cardiac auscultation reveals a regular rhythm with no murmurs, though a right-sided S4 is audible. Point-of-care laboratory testing shows an arterial pH of $7.32$, $\text{pCO}_2$ of $36\text{ mm Hg}$, and a serum lactate of $3.8\text{ mmol/L}$. Which of the following is the most appropriate next step in the management of this patient?