6 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... Primary intestinal hypomagnesemia ... losses - Chronic diarrhea ... #Differential # ... Magnesium #Table #Classification
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
Hypokalemia - Differential ... NG drainage - Diarrhea ... - Polyuria - Hypomagnesemia ... #Hypokalemia #Differential ... Potassium #Table #Classification
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... biliary fistula, Diarrhea ... aldosteronism #Hypomagnesemia ... #Causes #differential ... #diagnosis #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Congenital chloride diarrhea ... Gitelman syndrome, Hypomagnesemia ... acidosis due to diarrhea ... urine #Algorithm #nephrology ... #differential #
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Alcoholism (worsened by hypomagnesemia ... nasogastric suction, Diarrhea ... Fever Other: - Hypomagnesemia ... Hypokalemia #Causes #differential ... #diagnosis #nephrology
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
hypokalemia, mild hypomagnesemia ... potassium wasting) • Hypomagnesemia ... ratio 0.5%) Differential ... Congenital chloride diarrhea ... Syndrome #diagnosis #nephrology