{"id":5197,"date":"2011-07-14T20:24:19","date_gmt":"2011-07-14T20:24:19","guid":{"rendered":"http:\/\/crashtext.org\/misc\/magnesium.htm\/"},"modified":"2011-10-31T01:50:25","modified_gmt":"2011-10-31T05:50:25","slug":"magnesium","status":"publish","type":"post","link":"https:\/\/crashingpatient.com\/medical-surgical\/electrolyte-disorders\/magnesium.htm\/","title":{"rendered":"Magnesium"},"content":{"rendered":"

Best review from the OR jockies <\/a><\/p>\n

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<\/span>Hypomagnesemia<\/span><\/h2>\n

<\/span> Differential Diagnosis of Hypomagnesemia<\/a><\/span><\/h3>\n

\"\"<\/a>Why do we care about hypomagnesemia? And why are cardiologists so eager to replete the serum magnesium above 2.0 mg\/dL? Very low serum Mg can result in serious cardiovascular and CNS effects. Specifically, hypomagnesemia can cause QRS widening and may predispose to various arrhythmias (there is a nice section on this in Up-To-Date under “Significance of Hypomagnesemia in Cardiovascular Disease<\/a>.” Furthermore, very low serum Mg can result in CNS effects such as coma or seizure. In addition, hypomagnesemia is linked with two other important electrolyte abnormalities: hypokalemia (reflecting the clinical pearl that it is nearly impossible to correct total body potassium stores while the serum magnesium remains low) and hypocalcemia (which can result from hypomagnesemia-induced PTH resistance). The following is one potential approach to hypomagnesemia: 1.\u00a0Decreased Magnesium Intake<\/strong>: The big one here is chronic alcoholism, which is actually thought to be related both to a nutrititonal deficiency of Mg as well as a renal Mg wasting effect of EtOH. 2.\u00a0Redistribution of Mg from the Extracellular to the Intracellular Space<\/strong>: This can occur as part of the constellation of electrolyte abnormalities seen with refeeding syndrome, hungry bone syndrome, or during the treatment of DKA. 3.\u00a0GI Losses of Mg<\/strong>: This can result from nearly any cause of chronic diarrhea (e.g., Crohn\u0092s Disease, hx small bowel resection, chronic infectious diarrheas, etc), as well as losses from vomiting or NG suction. 4.\u00a0Renal Losses of Mg<\/strong>: Perhaps the most common cause of renal Mg wasting is simply diuretic use: both thiazide and loops diuretics can cause renal Mg loss. Other drugs (e.g., amphotericin B, aminoglycosides, cisplatin, pentamidine, cyclosporine, and tacrolimus) are also common culprits. Hypercalcemia also inhibits renal magnesium uptake. There are also a variety of genetic diseases that result in renal Mg loss, including Gitelman Syndrome, Bartter Syndrome, mutations in the paracellin or TRPM6 genes, and many\u00a0others<\/a>. Posted by nathanhellman at 10:29 AM<\/a> Labels: electrolytes<\/a>, magnesium metabolism<\/a><\/p>\n

(Renal Fellow Blog)<\/p>\n

 <\/p>\n

Hypo worsens dig toxicity<\/p>\n

 <\/p>\n

<\/span>Hypermagnesemia<\/span><\/h2>\n

Hyper is rxed c Ca<\/p>\n

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|\u00a0\u00a0 \u00a0\u00a0 |\u00a0\u00a0 \u00a0\u00a0 |<\/p>\n","protected":false},"excerpt":{"rendered":"

Emergency department (ED) critical care. We combine emergency medicine and intensive care to be the source for emergency physician intensivists.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[28],"tags":[],"yoast_head":"\nMagnesium - Crashing Patient<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/crashingpatient.com\/medical-surgical\/electrolyte-disorders\/magnesium.htm\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"CrashMaster\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/crashingpatient.com\/medical-surgical\/electrolyte-disorders\/magnesium.htm\/\",\"url\":\"https:\/\/crashingpatient.com\/medical-surgical\/electrolyte-disorders\/magnesium.htm\/\",\"name\":\"Magnesium - 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