102 results
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Bartter syndrome and Gitelman ... causes #nephrology #magnesium
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
Gitelman Syndrome ... cotransporter • Gitelman's ... Pseudo Bartter-Gitelman ... • Potassium • Magnesium ... #Gitelman #Syndrome
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
syndromes - Gitelman ... Diagnosis #Low #Magnesium
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
nephrocalcinosis (FHHNC) • Gitelman's ... Hypomagnesemia #Magnesium
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
potassium(K) & magnesium ... Bartter syndrome, Gitelman
Localization of Renal Tubular Defects
Fanconi Syndrome: Proximal tubule
Bartter Syndrome: Thick ascending loop of Henle
Gitelman Syndrome: Distal
loop of Henle Gitelman ... Fanconi #Bartter #Gitelman
Algorithm for Differentiating Gitelman syndrome from Bartter syndrome
 • Urine Chloride
 • Urine Ca/Cr ratio

Dr. Krithika
Differentiating Gitelman ... krithicism #Gitelman
Cardiac Magnesium Infusion Protocol - Torsades de Pointes

#Magnesium #Infusion #Protocol #TorsadesDePointes #Management
Cardiac Magnesium ... de Pointes #Magnesium
Magnesium Electrolyte Repletion
Oral - Only do if patient does not tolerate IV
 • Magnesium oxide (can
Magnesium Electrolyte ... tolerate IV • Magnesium ... 800mg PO daily • Magnesium ... SatyaPatelMD #Magnesium
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Fractional excretion of magnesium ... = (urine magnesium ... )/ [0.7 (serum magnesium ... loss, shift of magnesium ... FEMg >4% = renal magnesium