A 62-year-old man is brought to the emergency department via ambulance due to the sudden onset of severe, tearing chest pain that radiates to his interscapular region. His blood pressure is 195/115 mm Hg in the right arm and 170/100 mm Hg in the left arm. Heart rate is 110/min. Physical examination reveals a new diastolic decrescendo murmur at the right upper sternal border. Arrange the following steps in the most appropriate chronological order for the initial evaluation and management of this patient.
- 1Obtain a bedside 12-lead electrocardiogram
- 2Administer intravenous esmolol
- 3Administer intravenous sodium nitroprusside
- 4Perform computed tomography angiography of the chest and abdomen
Answer
The correct sequence is to first obtain a 12-lead electrocardiogram, then administer intravenous esmolol, followed by intravenous sodium nitroprusside, and finally perform a computed tomography angiography.
The sequence follows the standard protocol for suspected aortic dissection: immediate bedside rule-out of ST-elevation myocardial infarction (ECG), followed by sequential anti-impulse medical therapy (heart rate control with esmolol, then blood pressure control with nitroprusside), and finally definitive diagnostic imaging (CT angiography) once the patient is hemodynamically stable.
Step-by-Step Solution
Key Concept
In the initial management of suspected acute aortic dissection, an electrocardiogram is obtained first to rule out myocardial infarction, followed by strict blood pressure and heart rate control (beta-blocker first, then vasodilator) prior to definitive imaging.