Answer
The resin can lower potassium too far and may also cause high calcium or low magnesium, so electrolyte monitoring guides treatment.
Sources for this answer
- Calcium Polystyrene Sulfonate 99.75% Powder for Oral and Rectal Suspension — Current selected SmPCemc · Summary of Product Characteristics
General medicine information. Follow the instructions for your own medicine and speak to a pharmacist or clinician about your individual circumstances.