<prompt> Hyperkalemia can occur in all the following except-Cushing syndromeCrush injuriesRenal failureIntravascular haemolysis  <response>: The enhanced mineralocoicoid effect in Cushing syndrome is caused by occupation of the MR by the high concentration of coisol. Hypokalemia and metabolic alkalosis are more common in Cushing syndrome caused by ectopic ACTH production 90 than in other causes of Cushing syndrome 10 Ref Davidson 23rd edition pg 364 