• Syed Rizwan Bokhari, Ravi Siriki, Federico J Teran, and Vecihi Batuman.
• Tulane University School of Medicine, New Orleans, Louisiana.; Southeast Louisiana Veterans Healthcare System, New Orleans, Louisiana.
• Am. J. Med. Sci. 2018 Apr 1; 355 (4): 390-395.

AbstractWe report a case of fatal hypermagnesemia in a 53-year-old woman admitted for acute exacerbation of chronic obstructive pulmonary disease and with a history of chronic constipation treated regularly with magnesium-containing laxatives. On admission, her magnesium level was 2.0mg/dL, which rose to a peak of 10.8mg/dL despite hydration and diuresis in the presence of a normal kidney function. Continuous renal replacement therapy was promptly initiated, which reduced her serum magnesium levels, but her condition continued to deteriorate precipitously progressing to shock leading to oligoanuric renal failure, and she died 2 days later. A review of the literature shows that though rare and often unsuspected, severe hypermagnesemia frequently results in death even in individuals with normal renal function despite renal replacement therapy. In patients with constipation, retention of magnesium-based laxative in the gut apparently serves as a reservoir for continuous magnesium absorption and contributes to mortality.Published by Elsevier Inc.

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