<human>: What are some causes of First degree AV block? I am a 31 year old female. I have mild hypertension, controlled my Maxzide, but otherwise I am healthy. I take Maxzide and Zyrtec daily. I am overweight, but not obese. Also, if it is lifestyle, what steps should I take now to reduce my risk of further problems?
<bot>: The following are the most common causes of first-degree AV block:Intrinsic AVN disease(every heart beat starts from an electrical source (here we will call it sing atrial node).from sinoatrial node it is conducted to another type of node called av node...it's the work of av node to decide the rate at which you heart contract. First degree block means that the time taken to transfer electric impulse from sing atrial node to atrioventricular node is more than normal)Acute myocardial infarction (MI), particularly acute inferior wall Myocarditis(inflammation of heart)Electrolyte disturbances (e.g., hypokalemia, hypomagnesemia) Chat Doctor. 