Overall, a nuclear stress test
is about 85 - 90% accurate.Your chance of a cardiac event after a normal nuclear stress test
is about 1.62% per year for the next 10 years, better than a sampling of the general public. Normally, a blockage will show up once it hits approx 70% occluded.
I know you read about people that have a stress test that is normal and drop dead the next day, don't get too worked up about that.