Question Title: Activity induced tachycardia

My 14 year old son did not pass his sports physical due to an irregular pulse rate. I took him to our pediatrician. His resting heart rate was 120. He had him do some jumping jacks and his heart rate jumped to 170. He had a normal EKG done and will be getting an event monitor. He has always been healthy and is very active in sports. He does have occasional episodes of dizziness. We are not sure at this time if it is related to his heart rate. Should we be concerned at this point about him participarting in sports? What other tests should I request be done? There is no history of drug or alcohol usage.

Dear Tami,

Thank you for your question. I would recommend an assessment to rule out arrythmias (as you are doing with a holter monitor), a formal stress test and finally an echocardiogram to rule out structural causes of heart disease.

Please keep us posted on your son's progress.

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