24 results
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Causes of Hypomagnesemia ... Differential Diagnosis Algorithm ... Urine Mg < 10g • Diarrhea ... #Magnesium #Low ... #Causes #Differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypomagnesemia - ... losses - Chronic diarrhea ... - Uncontrolled diabetes ... Differential #Diagnosis #Low ... Classification #Causes
Hypophosphatemia - Differential Diagnosis Algorithm

Transcellular Shift
 • Recovery From DKA
 • Refeeding Syndrome
 • Acute Respiratory
Hypokalemia • Hypomagnesemia ... • Small bowel diarrhea ... Inflammatory Bowel Disease ... Steatorrhea • Chronic Diarrhea ... endocrinology #causes
Metabolic Alkalosis - Differential Diagnosis Algorithm - Urinary Chloride
 • Cl- responsive metabolic alkalosis
Congenital chloride diarrhea ... - Normal/low ... Gitelman syndrome, Hypomagnesemia ... metabolic acidosis: Diabetic ... #causes #urinary
Causes of Hypomagnesemia
Redistribution:
 - IV glucose
 - Correction of diabetic ketoacidosis
 - IV hyperalimentation
 - Refeeding
Causes of Hypomagnesemia ... Correction of diabetic ... biliary fistula - Diarrhea ... Tubulointerstitial renal disease ... medications #drugs #pharmacology
Metformin Pharmacology Summary
Mechanisms of Action:
 • Suppresses gluconeogenesis by the liver
 • Increases insulin-mediated glucose utilization
Metformin Pharmacology ... agent • Does not cause ... hypoglycemia • Low ... effects (e.g. diarrhea ... #Summary #DM2 #diabetes
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... mannitol, glucosuria Low ... 300 mmol/kg • Diabetes ... loss • Watery Diarrhea ... #Causes
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Causes of Hypomagnesemia ... Correction of diabetic ... biliary fistula, Diarrhea ... Tubulointerstitial renal disease ... nephrology #magnesium #low
Shock - Differential Diagnosis Algorithm
Warm Extremities
 - Distributive Shock - Low JVP
Differential Diagnosis Algorithm ... Distributive Shock - Low ... Left-sided Valvular Disease ... Vomiting • Diarrhea ... #causes
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Urinary Chloride Algorithm ... alkalosis • Normal/low ... Gitelman syndrome, Hypomagnesemia ... metabolic acidosis • Diabetic ... the indicated causes