How is hypermagnesemia treated?
The best way to treat hypermagnesemia is preventing it from happening in the first place. Avoid magnesium-containing products in patients with CKD or those with AKI. Also, patients receiving magnesium infusions should be monitored regularly.
Treatment in patients with preserved kidney function or only mild CKD is primarily stopping all magnesium-containing medications and initiating intravenous fluids with normal saline. The addition of loop diuretics can further assist with kidney magnesium clearance.
If the patient has severe CKD and significant symptomatic hypermagnesemia, the primary therapy is hemodialysis. IV calcium can be given to reverse the neuromuscular and cardiovascular effects of magnesium while preparing for hemodialysis.