Which of the following is associated with AV block?: (A) Hypothyroidism, (B) Hypehyroidism, (C) Cushing disease, (D) Pheochromocytoma
Answer is A. Metabolic /endocrine causes of Atrioventricular Block 1. Hyperkalemia 2. Hypermagnesemia 3. Adrenal insufficiency 4. Hypothyroidism