I am a 64 year old female who was recently diagnosed with an exercise induced left bundle branch block during a treadmill stress test. A nuclear non treadmill was done the next week. My ejection fraction was 84%, The ekg was inconclusive due to baseline ekg changes, and LVH was written next to the ekg result area. The nurse who called said there is nothing to worry about, as no blockages were detected. I can't get in to see the cardio for weeks for the followup and was wondering if the high ef and LVH are cause for concern. Thank you for any replies.