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KMID : 0882420160910030306
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Korean Journal of Medicine
2016 Volume.91 No. 3 p.306 ~ p.310
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Symptomatic Hypermagnesemia in Normal Kidney Function with a Colonic Cleansing Agent
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Kim Tae-Hong
Kim Tae-Hyung
Lee Won-Hyuk
Lee Yoo-Jin
Park Si-Hyung
Park Bong-Soo
Kim Yang-Wook
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Abstract
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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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KEYWORD
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Magnesium, Cathartics, Neoplasms
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