First, sorry my two links in my first post were on catherization. I'd meant to post a link to a nuclear stress test. Here is one from the Mayo Clinic: https://www.mayoclinic.org/tests-procedures/nuclear-stress-test/about/pac-20385231
Go down to the paragraph that says During a nuclear stress test
and you will see a section about
patients who cannot exercise on the treadmill. Of course this makes sense because not everyone is able to walk on a treadmill. So, in short, you would be injected with a drug and then monitored. Throughout the 'stress' portion of the test, they have an EKG running, too.
So, I still don't know which you should choose. I just feel it should depend on the doctor's guidance. He or she knows better what each of these two tests show.
In my own case, I learned that anxiety can cause BP to be high - and I'm not talking about
white coat syndrome - anxiety can actually cause critically high blood pressure and chest pain, shortness of breath. These lab tests can rule out heart problems or can pinpoint where the heart problems are. If it is a toss up between the two tests, I'd have the heart cath again as opposed to the nuclear stress test (now that I know what both are like). The reason is the cath was faster and there were fewer parts involved although since you would not be on a treadmill, I can't really speak for that because I did have to use the treadmill.
Good luck. I hope the test comes out well for you!