Korean J Med.
2016 Dec;91(3):306-310. 10.3904/kjm.2016.91.3.306.
Symptomatic Hypermagnesemia in Normal Kidney Function with a Colonic Cleansing Agent
- Affiliations
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- 1Department of Internal Medicine, Inje University Haeundae Paik Hospital, Busan, Korea. kyw8625@chol.com
- KMID: 2361439
- DOI: http://doi.org/10.3904/kjm.2016.91.3.306
Abstract
- Most reported cases of hypermagnesemia are related to laxative abuse and impaired renal function, while hypermagnesemia is uncommon without iatrogenic magnesium administration and decreased renal function. Magnesium-containing bowel-cleansing agents are widely used before colonoscopy, usually without complications. However, we experienced a case of symptomatic hypermagnesemia with normal renal function after using a bowel-cleansing agent. A 74-year-old man with normal renal function complained of lethargy and motor weakness after taking a bowel-cleansing agent containing 14 grams of magnesium before a colonoscopy for hematochezia. His magnesium level was 12 mg/dL. Fluid stasis in the gut due to colonic obstruction might have caused the hypermagnesemia. He was treated successfully with a bowel enema and intravenous calcium. We should be cautious when prescribing drugs for colonoscopy if colonic obstruction is suspected.
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