Hi My Husband Had Three Stents Placed In The Right

hi my husband had three stents placed in the right coronary artery oct 2015. he is on a beta blocker Metropolol? and lisinopril. his heart rate is always around 50 to 60 because he is an avid exerciser. he is asymptomatic regarding dizziness. the doc decreased his beta blocker in half and increased the lisinopril from 10 mg to 20mg. what is the best b/p target he should be at. he is running 132 to 140 systolic and 70 diastolic.
thanks