Question

Which of the following represent features of a stent and its use in cardiology? Check all of the boxes that apply.

expandable metallic mesh tube

inserted using a long wire called a catheter

results in longer recovery times

more expensive than other methods

avoids major bypass surgery

is not left in the body after treatment

Answer 1

Check these as features of a cardiac stent:

- [x] expandable metallic mesh tube
- True — stents are mesh tubes that expand to prop open narrowed arteries.

- [x] inserted using a long wire called a catheter
- True in intent — the stent is delivered percutaneously via a catheter over a guidewire. (Minor correction: a catheter is a thin tube; the guidewire is the wire.)

- [x] more expensive than other methods
- Generally true compared with plain balloon angioplasty or medical therapy (drug‑eluting stents add device cost). (Note: overall cost may be lower than coronary bypass in many cases.)

- [x] avoids major bypass surgery
- True — stenting (PCI) can often obviate the need for coronary artery bypass grafting.

Do NOT check:

- [ ] results in longer recovery times — False. Recovery after PCI with stent is usually shorter than after open bypass surgery.
- [ ] is not left in the body after treatment — False. Stents are left in place to keep the artery open.