Prolonged QT

I've taken 2 EKG , 1 Stress Test, and 1 Echo.

My first EKG showed a reading of 185 qtc . The cardiologist suggested we do a stress test and echo and everything came back normal . The cardiologist said im fine and not to worry , however, my anxiousness kicked in and I decided to take another EKG to see how everything comes out . I went in to take another EKG and got a reading of 195 qtc !

HOWEVER , the cardiologist said that "we were looking at the wrong wave" and measure the reading herself and got a qtc of 135. 

I know I shouldn't worry because supposedly i'm fine but it bugs me that the EKG would say 195 qtc. 

She apparently talk to a colleague of hers , whose a electrophysiologist, and he seem to believe i'm find as well.

My pulse was 105 at the time of the second EKG , I do know that pulse affect the accuracy , but going from 195 to 135, that just doesn't seem right .