EF and Heat Failure

[bob647]

I have had 3 echos all coming up with EF of 35 to 40%. I then had an echo with contrast that showed 30% EF. During this procedure the IV came out of my arm. Does the have any impact on these results? I was under the impression that echo results gave lower readings than one with contrast. I have no symptoms of HF. I work out at least 4 times per week doing cardio and weight training. I am thinking about changing cardiologists. Input appreciated. BP is 125/68 and resting pulse is in the 60s.