Hello there, I have been having a lot of skipped palpitations and ended up at the hospital to days in a row. My first ECG showed a prolonged QT of over 600. The next day my ECG was fine. I have had many ECGs done over the past year, due to anxiety issues, and all but two were fine. Unfortunately two of them showed prolonged QT. One doctor at the ER said I had long QT syndrome but when I went back the next day the other ER doctor said I didn’t have it because I have had so many tests done in the past year and my heart looks fine so to ignore the prolonged QT reading on the ECG. I can’t get into the cardiologist until May, 2018. I have been so worried and concerned about this. They also gave me magnesium sulfate by IV two days in a row and it definitely slowed down the heart palpitations but I am still worried about the prolonged QT reading. I am 48 years old and there is no family history of fainting or sudden death. I guess my question is is can a normal person have such a high prolonged QT? Thank you so much.