22 results
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Hypomagnesemia - ... Renal Causes of Hypomagnesemia ... Bartter syndrome and Gitelman ... diagnosis #causes #nephrology ... #magnesium #low
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Diagnosis Algorithm Low ... Medication • Hypomagnesemia ... tubular acidosis • Gitelman's ... Transcellular shift ... Algorithm #Causes #Classification
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... syndromes - Gitelman ... Differential #Diagnosis #Low ... Magnesium #Table #Classification ... #Causes #Workup
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Transcellular Shift ... vomiting) • Low ... Transcellular shifts ... Diagnosis #Algorithm #nephrology ... #low #potassium
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Approach to Hypomagnesemia ... intake, Gl loss, shift ... @NEPHKIDS1 #Hypomagnesemia ... diagnosis #causes #nephrology ... #magnesium #low
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
the basis of the potassium-to-creatinine ... creatinine) • Cell shift ... Bartter syndrome, Gitelman ... hypokalemia #urine #potassium ... algorithm #diagnosis #nephrology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Normal Acid-Base: Low ... Ureterosigmoidoscopy • HTN, Low ... Bartter syndrome, Gitelman ... Algorithm #causes #potassium ... #low #nephrology
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
- Polyuria - Hypomagnesemia ... Differential #Diagnosis #Low ... #Potassium #Table ... #Classification
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
alkalosis • Normal or low ... Hypokalemia (renal potassium ... wasting) • Hypomagnesemia ... Supplement: • Potassium ... Syndrome #diagnosis #nephrology
Causes of Metabolic Alkalosis - Differential Diagnosis Algorithm
GI Losses - Gastric
 • Vomiting
 • NG suction
GI
loop/thiazide) • Hypomagnesemia ... • Barrter's/Gitelman's ... aldosteronism Low ... Renin, Low Aldosterone ... MetabolicAlkalosis #NonGap #Nephrology