A -year-old man is brought to the emergency department by ambulance due to the sudden onset of severe, "tearing" chest pain that radiates to his interscapular region. He has a history of poorly controlled hypertension. On arrival, he appears diaphoretic and in severe distress. His blood pressure is in the right arm and in the left arm. His heart rate is . A portable chest radiograph reveals a widened mediastinum. An acute aortic dissection is highly suspected. Arrange the following next steps in the most appropriate chronological sequence for the initial management of this patient.
- 1Administer intravenous esmolol
- 2Administer intravenous sodium nitroprusside
- 3Perform computed tomography angiography of the aorta
- 4Obtain an emergent cardiothoracic surgery consultation
Answer
The correct sequence is: Administer intravenous esmolol → Administer intravenous sodium nitroprusside → Perform computed tomography angiography of the aorta → Obtain an emergent cardiothoracic surgery consultation.
The correct sequence for managing a suspected acute aortic dissection prioritizes immediate hemodynamic control before diagnostic imaging and definitive treatment. Beta-blockade must always precede vasodilation to prevent catastrophic reflex tachycardia and worsening aortic shear stress.
Step-by-Step Solution
Key Concept
The immediate medical management of acute aortic dissection requires stepwise hemodynamic control: intravenous beta-blockers must be administered first to reduce left ventricular contractility and heart rate, followed by vasodilators if needed for blood pressure control, before safely obtaining confirmatory imaging and proceeding to surgical consultation.
Estimated Time:1m 30s