Q4
Single choice
A patient underwent a successful percutaneous coronary intervention to the left anterior descending coronary artery. The patient suddenly begins to complain of dyspnea, jaw pain, and chest tightness. The bedside monitor displays sinus tachycardia and ST segment elevation in lead V2. The patient's neck veins are flat and BP is 152/98.
Which of the following is the most likely cause of the patient's symptoms?