31 results
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Familial: Bartter syndrome ... and Gitelman syndrome ... - Acquired: Medications ... diagnosis #causes #nephrology ... #magnesium #low
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
Approach to Hypomagnesemia ... @NEPHKIDS1 #Hypomagnesemia ... #algorithm #differential ... diagnosis #causes #nephrology ... #magnesium #low
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... osmotic diuresis, Potassium ... renal disease • Drugs ... differential #diagnosis #nephrology ... #magnesium #low
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... Renal Loses - Medications ... - Hungry bones syndrome ... Differential #Diagnosis #Low ... #Magnesium #Table
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Low Magnesium ... , High Magnesium ... deficiency • Drugs ... metastases, Hungry bone syndrome ... #nephrology #calcium
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Causes of Hypomagnesemia ... Differential Diagnosis Algorithm ... • Gitelman's syndrome ... #Magnesium #Low ... Differential #Diagnosis #Algorithm
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
• Refeeding syndrome ... Thyrotoxicosis Medications ... vomiting) • Low ... #nephrology #low ... #potassium
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Differential Diagnosis Algorithm ... Normal Acid-Base: Low ... Differential #Diagnosis #Algorithm ... #causes #potassium ... #low #nephrology
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
Drugs associated ... hypokalemia and hypomagnesemia ... renal Fanconi syndrome ... #Medications #differential ... #diagnosis #nephrology
Causes of Seizures - Differential Diagnosis Algorithm
Unprovoked - Epilepsy:
 • Focal: Simple, Complex
 • Generalized: Absence,
vasoconstriction syndrome ... Toxic: Alcohol, Medication ... , Recreational drugs ... Hyponatremia, Hypomagnesemia ... #Causes #neurology