Medicine Diseases of Thyroid b93acc59 Which of the following is associated with AV block? A Hypothyroidism B Hypehyroidism C Cushing disease D Pheochromocytoma High-Yield Explanation Metabolic /endocrine causes of Atrioventricular Block 1. Hyperkalemia 2. Hypermagnesemia 3. Adrenal insufficiency 4. Hypothyroidism