When do you decide to initiate potassium binders for patients with hyperkalemia in the setting of CKD?  

I would generally start a K binder for K of 5.4 mmol/L or higher despite diet modification and appropriate use of diuretics

This is a complicated question and requires a lot of thought. In brief, first, I will determine if the serum potassium is high enough (usually around 5.3-5.5) and if it is increasing rapidly. Then I will determine if the patient is on a drug that will worsen hyperkalemia (mainly ACE/ARB/MRB). Then I...