Question

Which treatment improves blood flow by helping to open a narrow blood vessel?

a stent
a cardioversion
a valve replacement
a vascular graft

Answer 1

it is a stent

Step-by-step explanation:

A stent is a tube that your doctor inserts into a blocked passageway, such as a blood vessel, to keep it open.

Answer 2

A stent

Step-by-step explanation: