27 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
diarrhea / IBD Renal ... Loses - Medications ... Hypomagnesemia #Differential ... Low #Magnesium #Table ... Classification #Causes
Hypomagnesemia - Differential Diagnosis
Renal Causes of Hypomagnesemia - Familial:
Bartter syndrome and Gitelman syndrome, Isolated recessive hypomagnesemia,
Hypomagnesemia - Differential ... - Acquired: Medications ... transplant, Diuretic ... Hypomagnesemia #differential ... #nephrology #magnesium
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... Villous adenoma Renal ... chewing tobacco, Renal ... #differential # ... diagnosis #nephrology
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
foscarnet - Diuretics ... hypomagnesemia #Medications ... #differential # ... diagnosis #nephrology ... #Causes #hypomg
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
irrigation • Management ... Kidney stones caused ... #Diuresis #Nephrology ... #Pharmacology #Medications ... #Table
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... - Differential ... SGLT2 inhibitors (e.g ... Nephrogenic DI (Renal ... #nephrology
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Hypernatremia - Differential ... in kidneys) - Medications ... renal amyloidosis ... #Diagnosis #Table ... #Causes
Priapism 

Secondary Causes:
Medications- intracavernosal injections, anticoagulants, PDE5 inhibitors, alpha blockers, methylphenidate, cocaine
Any hyperviscosity syndrome (SCD, leukemia,
Secondary Causes ... : Medications- ... leukemia, myeloma, etc ... Priapism #Diagnosis #Management ... #Urology #Differential
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
by Mechanism Renal ... IV Mg infusion (e.g ... Hypermagnesemia #Differential ... High #Magnesium #Table ... #Causes #Management
Hyperkalemia - Diagnosis and Management - GrepMed Handbook

S/Sx: Most pts asymptomatic. Weakness, cramping, nausea, paresthesias, palpitations,
Etiology: • Medications ... heparinized tube) • ECG ... only if no clear cause ... Elimination (see Table ... STOP offending medications