16 results
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Hypokalemia - Osmotic ... diuresis - ... - Gitelman ... #Differential #Diagnosis ... Classification #Causes #Workup
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
- Differential Diagnosis ... Workup Algorithm ... , osmotic (solute ... , Cushing syndrome ... #nephrology #sodium
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
plasma insulin (treatment ... , Osmotic diuresis ... use), Gitelman's ... #differential #diagnosis ... #nephrology
Hypernatremia Classification and Features According to Volume Status
 - Hypervolemic hypernatremia - Cushing's syndrome, Primary hyperaldosteronism,
hypernatremia - Cushing's syndrome ... hypernatremia - Osmotic ... diuretic, Loop ... Classification #Features #Diagnosis ... Comparison #Table #Nephrology
Hypokalemia Differential Diagnosis Algorithm

Low intake 
• poor oral intake 

Renal loss 
• Medication 
• Hypomagnesemia 
•
Hypokalemia Differential Diagnosis ... Hypomagnesemia • Osmotic ... diuresis • Mineralocorticoids ... tubular acidosis • Gitelman's ... syndrome • Bartter's
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
- Differential Diagnosis ... Renal losses, Diuretic ... alkalosis, Ketonuria, Osmotic ... diuresis, Cerebral ... Algorithm #Causes #nephrology
Workup for Hypophosphatemia - Differential Diagnosis Framework
Rule out spurious hypophosphatemia: paraproteinemia, acute leukemia
Measure Urine Fractional Excretion
Workup for Hypophosphatemia ... - Differential Diagnosis ... , CA Inh., Osmotic ... diuresis Dr. ... #phosphate #nephrology
Diuretics and Agents Regulating Renal Excretion

Carbonic Anhydrase Inhibitors (Acetazolamide, Dichlorphenamide)
 • Glaucoma
 • Epilepsy
 • Altitude
periodic paralysis Osmotic ... disequilibrium syndrome ... • Diagnosis of ... Tolvaptan) • Treatment ... #Nephrology #Pharmacology
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Ketoacidosis, Saline or osmotic ... diuresis, Potassium ... • Drugs: Loop diuretics ... #differential #diagnosis ... #nephrology #magnesium
Gitelman Syndrome - Diagnosis and Workup
Blood Work:
 - Hypokalemia
 - Hypomagnesemia
 - Metabolic Alkalosis
 - Elevated
Gitelman Syndrome ... Normotensive - No diuretic ... dr_missyhanna #Gitelman ... #Syndrome #Diagnosis ... #Workup #nephrology