21 results
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... • Osmotic diuresis ... • Central diabetes ... • Nephrogenic diabetes ... #nephrology #sodium
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... Renal losses, Diuretic ... Ketonuria, Osmotic diuresis ... renal failure Hypervolemia ... #nephrology
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Renal Loses - Medications ... abnormalities - Hypercalcemia ... - Hypokalemia ... - Uncontrolled diabetes ... Classification #Causes
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
Hypercalcemia ... Kidney stones caused ... and euvolemic hyponatremia ... #Nephrology #Pharmacology ... #Medications #Table
Etiologies of Hypernatremia - Differential Diagnosis
GI losses / Insensible losses
Sodium Overload
Transcellular Movement of Water
Central Diabetes Insipidus
Etiologies of Hypernatremia ... Water Central Diabetes ... in kidneys) - Medications ... - Chronic hypokalemia ... Diagnosis #Table #Causes
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... (treatment of diabetic ... or induced) #Hypokalemia ... #Causes #differential ... #diagnosis #nephrology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... Defining the cause ... Ureterosigmoidostomy, Diabetic ... Post-hypercapnia • Diuretics ... #nephrology #potassium
Causes of Polyuria - Differential Diagnosis
Excess Intake of Water:
 • Primary polydipsia (a.k.a. "psychogenic polydipsia")
 •
Causes of Polyuria ... a.k.a. osmotic diuresis ... Diabetes Insipidus ... Hereditary, Lithium, Hypercalcemia ... #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... administration • Osmotic diuresis ... 300 mmol/kg • Diabetes ... #Nephrology #Differential ... Diagnosis #Algorithm #Causes
Drugs associated with hypokalemia and hypomagnesemia

Hypokalemia
- Shift from extracellular fluid to intracellular fluid compartment
  -
associated with hypokalemia ... hypomagnesemia Hypokalemia ... hypomagnesemia #Medications ... differential #diagnosis #nephrology ... #Causes #hypomg