A percutaneous transluminal coronary angioplasty (PTCA) restores blood flow to the ischemic myocardium by:
A. scraping fatty deposits off of the lumen of the coronary artery.
B. bypassing the coronary artery with a vessel from the chest or leg.
C. placing a stent inside the coronary artery to keep it from narrowing.
D. dilating the affected coronary artery with a small inflatable balloon.
Answer: D. dilating the affected coronary artery with a small inflatable balloon.
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