###Human: My friend has a second-degree heart block and low blood pressure. How to get it treated? ###Assistant: Hello. I understand your concern. I want to explain that when we are in front of a cardiac conductance abnormality in an young adult first, it is necessary to exclude an infectious and inflammatory disease, like Lyme disease, sarcoidosis, and other cardiac issues, like myocarditis, and anomalous coronary artery, etc. It is necessary to undergo a full blood test panel and a cardiac ultrasound test. For a more detailed cardiac tissue characterization, it is necessary to undergo a cardiac magnetic resonance imaging test (CMR). Meanwhile, I recommend that your friend refrains from competitive sports and any excessive physical exertion. I hope it is helpful for you.