Question

Doctors place a stent inside the artery during angioplasty. A stent is a
A. A new fragment of the artery
B. A wire mesh tube
C. A cotton tube
D. A slow-release medicine capsule

Answer 1

Hint:
Before we proceed into the problem, it is important to know the definition of angioplasty.
Angioplasty is a procedure that uses a catheter to open blocked blood vessels. It is used in the treatment of coronary artery disease, peripheral arterial disease, and other cardiovascular diseases. Angioplasty can be performed using balloon angioplasty or stenting. Balloon angioplasty involves the insertion of a balloon into the lumen (the inside) of an obstructions vessel and subsequently inflating it with air or other gas to create wedging pressure and break up clots

Complete answer:
Angioplasty is frequently combined with the insertion of a small wire mesh tube known as a stent. The stent keeps the artery open and reduces the likelihood of it narrowing again. Most stents are drug-coated to help keep the artery open (drug-eluting stents). Bare-metal stents are rarely used.
It can alleviate symptoms associated with blocked arteries, such as chest pain and shortness of breath. Angioplasty is also frequently used during a heart attack to quickly open a blocked artery and reduce heart damage.
Stenting is similar to Balloon Angioplasty but instead of inserting a balloon, small metal mesh plates are inserted under high-pressure into narrowed arteries to prop them open and prevent restenosis (re blockage).
Therefore, a stent is a wire mesh tube.

Option ‘B’ is correct

Note:
Almost all angioplasty procedures now use coronary stents. A stent is a small metal mesh coil that can be expanded. It is inserted into the newly opened area of the artery to prevent it from narrowing or closing again. Once the stent is in place, the tissue will begin to coat it like a layer of skin.