question: My husband, a very active 93, recently started intermittent bradycardia - 38 -42bpm. Usually has a 73 +/,He s on amlodipin 2.5 mg twice a day for high blood pressure. He has 1 heart stent and several other narrowed arteries in his heart. He s also on a blood thinner because of the stent ( Plavix) His color is good, no shortness of breath, no light headedness. He can cough and get his blood pressure back up. But later will drop again. How serious is this.