JBL EMT Practice Exam 2025 – Comprehensive All-in-One Resource for Exam Success!

Question: 1 / 400

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.

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.

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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.

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