Hypomagnesaemia
ICD-10 E61.2 · ICD-11 5C64.41

Treatment of Hypomagnesaemia with Serum Magnesium Below 0.4 mmol/L or Symptomatic Presentation

This protocol covers a specific, high-priority clinical situation: serum magnesium at a critically low threshold, or the presence of symptoms that signal significant magnesium deficiency and require prompt management.

Clinical Scenario

Serum magnesium below 0.4 mmol/L, or symptomatic hypomagnesaemia presenting with tremors, weakness, swallowing difficulties, cardiac arrhythmias, or seizures.

Treatment Approach

Intravenous magnesium replacement is the cornerstone of management in this setting — the full regimen, including agent selection, administration parameters, and guidance for emergency situations, is detailed in the structured protocol.

Monitoring Goal

Plasma magnesium levels and clinical symptoms should be reviewed within 6 to 12 hours of treatment.

References

Severe or symptomatic hypomagnesaemia (e.g. tremors, weakness, swallowing difficulties, cardiac arrhythmias or seizures)

Correct with intravenous magnesium.

Review plasma levels or clinical symptoms within 6 to 12 hours.

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