JBL EMT Practice Exam

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Prepare for the JBL EMT Exam and improve your chances of success. Study with our flashcards, multiple-choice questions, hints, and explanations. Get exam-ready!

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A percutaneous transluminal coronary angioplasty (PTCA) restores blood flow to the ischemic myocardium by:

bypassing the coronary artery with a vessel from the chest or leg.
dilating the affected coronary artery with a small inflatable balloon.
placing a stent inside the coronary artery to keep it from narrowing.
scraping fatty deposits off of the lumen of the coronary artery.

The correct answer is: bypassing the coronary artery with a vessel from the chest or leg.

In a percutaneous transluminal coronary angioplasty (PTCA), the correct answer is A because it involves dilating the affected coronary artery with a small inflatable balloon, helping to restore blood flow to the ischemic myocardium. This procedure is performed by inserting a catheter with a deflated balloon into the narrowed artery, and then inflating the balloon to widen the artery and improve blood flow. The other options are incorrect: B. Placing a stent inside the coronary artery to keep it from narrowing is an alternative procedure to PTCA, but it is not the action that a PTCA specifically involves. C. Bypassing the coronary artery with a vessel from the chest or leg is a procedure known as coronary artery bypass grafting (CABG), but it is not what PTCA entails. D. Scraping fatty deposits off of the lumen of the coronary artery is a procedure known as atherectomy and is not typically done in a PTCA procedure.