No my husband is 54 years old, he has had 2 heart attacks. I have no idea why i suddenly felt the need to change his doctor, but i think it may have saved his life, it's been almost 2 years since his last heart attack and this is the first time any testing besides blood work has been done. I am so glad this doc ordered it on our first visit. He's been his doctor for 2 weeks and has already impressed me by catching this with the test. I think he may have saved his life.
Get the test done, that's the first thing. A blockage can be dangerous, I believe.
I suppose what your doctor means by "will decide" is it may be possible to repair the stent or it may require bypass surgery, a more serious surgery. I see from your profile you are 25, if your husband is near your age I am surprised that he required a stent...but that being the case treatment and monitoring by a specialist is appropriate.