<s>[INST] Hi, I had a Cardiac Risk Assessment 1 week ago today at the local hospital as part of a Cardiac Assessment Screening that was offered. I am a 57 year old caucasion male, I am 5 7 186 lbs. The assessment included an ECG. The results are as follows: Vent rate 64 BPM Sinus rhythm, PR interval 158ms Right bundle branch block, QRS duration 148 ms Abnormal ECG, QT/QTc 430/443 ms no previous ECGs available, P-R-T axes 44 -20 14. Up until the last 3 years I stayed fit by going to the gym and working out on the treadmill and using the weight machines for strength training. My goal this year is to get fit again by returning to the gym. I would appreciate some insight as to what these results mean. I plan on contacting a local physician to be evaluated, but am concerned about the results of the ECG. Sincerely, Kevin M. B [/INST] Hello Kevin,I have gone through your history .Right bundle branch is usually not a serious abnormality .it is possible you may be having long standing RBBB without any significant heart disease .But when it is picked up for the first time we need to confirm that it is not due to any lesion of heart .If you have old ECG taken in past (by chance) and it too showed same finding then you may consider as benign condition.however it is advisable to get echocardiogram and stress test done.If they are normal you safely resume Gym.and live normal life.My best wishes. </s>