I had an EKG and my doctor dictated that it showed the following: Sinus Rhythm 79 PVC Inferior Lateral ST Depression. My doctor has ordered a nuclear medicine stress test because I have some back problems and I was concerned about doing the treadmill stress test. I guess I have two questions/concerns and wondered if anyone might shed some light on either of them. First, what does this dictation that my doctor put in my record mean about my EKG? I have had a benign PVC all of my life but don’t know if this is the same thing. I had been feeling like my chest was heavy and very tired, a little breathless sometimes which is why I went in to the cardiologist. Second, has anyone had a nuclear medicine stress test? I am concerned about the side effects and not being able to control them. I read about some of them and saw that the FDA had issued a warning about risks with nuclear medicine stress tests. Then I saw on the Mayo Clinic site that the nuclear medicine test may be more accurate and if the regular treadmill one isn’t conclusive, I might end up having to do the nuclear one anyway. It was an ECO stress test I had many years ago when the benign PVCs were discovered. I am really afraid of doing the nuclear test. Please guide me if you can.