123 results
Approach to Hypomagnesemia 

Fractional excretion of magnesium = (urine magnesium x serum creatinine)/ [0.7 (serum magnesium
cells FEMg >4% = renal ... if renal function ... Hypomagnesemia #algorithm #differential ... #diagnosis #causes ... #low
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Hypomagnesemia - Differential ... Diagnosis Renal ... #diagnosis #causes ... #nephrology #magnesium ... #low
Causes of Hypermagnesemia
Increased magnesium load
 - Magnesium-containing laxatives, antacids, or enemas
 - Treatment of pre-edampsia/eclampsia (mothers
load - Magnesium-containing ... Rhabdomyolysis Increased renal ... magnesium absorption ... Hypermagnesemia #Causes #diagnosis ... #differential
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
by Mechanism Renal ... intake - Magnesium ... Hypermagnesemia #Differential ... #Diagnosis #High ... #Magnesium #Table
Hypocalcemia Workup - Differential Diagnosis Algorithm
 • Low Magnesium, High Magnesium - Functional Hypoparathyroidism
 • High
Hypocalcemia Workup - Differential ... Diagnosis Algorithm ... • Low Magnesium ... , High Magnesium ... #Diagnosis #Algorithm
Types of Renal Calculi

Calcium oxalate
 - Interstitial apatite plaque, Low urine volume, Increased urinary calcium excretion,
apatite plaque, Low ... Struvite - Magnesium ... , High dietary magnesium ... #stones #differential ... #diagnosis #causes
Causes of Hypomagnesemia - Differential Diagnosis Algorithm
GI LOSS - FeMg < 2-2.5% or 24h Urine Mg
Hypomagnesemia - Differential ... Diagnosis Algorithm ... Malabsorption RENAL ... Hypomagnesemia #Magnesium ... #Low #Causes #Differential
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
diarrhea / IBD Renal ... - Familial renal ... Hypomagnesemia #Differential ... #Diagnosis #Low ... #Magnesium #Table
Diagnosis of Hypokalemia - Differential Algorithm 

Categorized by Causes: Redistribution, Extrarenal Losses, Renal Losses (High and
Diagnosis of Hypokalemia ... - Differential ... Extrarenal Losses, Renal ... Losses (High and Low ... #Hypokalemia #Differential
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Extra-renal Losses ... loss (Diarrhea) Renal ... #Diagnosis #Algorithm