20 results
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
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
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Loop and thiazide diuretics ... Hypokalemia - Osmotic ... diuresis - ... #Differential #Diagnosis ... Classification #Causes #Workup
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
plasma insulin (treatment ... , Osmotic diuresis ... , Bartter's syndrome ... #differential #diagnosis ... #nephrology
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
Peripheral Edema - Differential Diagnosis Framework for Lower Extremity Edema

Edema occurs when any of the following
- Differential Diagnosis ... Decreased plasma oncotic ... right leg with diuresis ... #differential #diagnosis ... #PhysicalExam #Pathophysiology
Approach to Undifferentiated Shock - OnePager Summary
Shock occurs when there is inadequate blood flow (CO) &
essential to determine treatment ... CCB, BB, BRASH syndrome ... salt-wasting, hypoaldo, osmotic ... diuresis, diuretics ... Undifferentiated #Shock #diagnosis