Yes, there is a way to show it.
Last year, when I was 15, I had to get an EKG to see what was wrong with my heart, since I went to the hospital since I had a high heart rate
(235 BPM according to the monitor that night). He was able to detect 1 abnormality to tell that I had an SVT
, but I didn't have a high heart rate during the EKG.
Most likely, if you have something wrong with your heart, it's genetic. If he finds something bad, he'll sent you to a heart specialist.