Hypermagnesemia

Hypermagnesemia is elevated serum magnesium, almost always in renal insufficiency or excess magnesium administration (antacids/laxatives/IV magnesium). Clinical: neuromuscular depression (weakness, areflexia), hypotension, bradycardia, ECG prolongation, and respiratory depression/arrest at severe levels. Treatment: stop magnesium, IV calcium gluconate for cardioprotection, IV fluids/diuresis, dialysis in severe renal failure.

Common Symptoms

Nausea; weakness; areflexia; hypotension; bradycardia; respiratory depression; ECG changes

Causes and Pathogenesis

Renal failure or excessive Mg intake overwhelms excretion; magnesium depresses neuromuscular transmission and cardiac conduction.

Treatment

Stop magnesium; IV calcium gluconate; IV fluids/diuretics; dialysis in severe/renal failure

Preventive Measures

Use magnesium cautiously in renal failure; monitor Mg levels.

Department to Visit

It is recommended to visit the Internal Medicine department; an appointment can be booked on this platform before the visit.

Warm reminder: The above information is for health science reference only and cannot replace professional medical diagnosis. If you have related symptoms, please seek medical attention at a regular hospital promptly.