All of the following are associated with Atrioventricular block, except:: (A) Hyperkalemia, (B) Hypomagnesemia, (C) Hypothyroidism, (D) Cushing's syndrome
Answer is D. Adrenal insufficiency is associated with Atrioventricular Block (Not cushing&;s syndrome). Metabolic/Endocrine Causes of AV Block: Hyperkalemia Hypermagnesemia Hypothyroidism Adrenal Insufficiency Ref: Harrison 19th edition Pg no: 1471