17 results
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... carcinoma of the lung ... hemorrhage) - Pulmonary ... Diagnosis #Table ... #Causes #Sodium
Hyponatremia Differential Diagnosis Table

 • Step 1: Correct for hyperglycemia. Corrected Na = [(glucose - 100)/
Hyponatremia Differential ... Diagnosis Table ... Serum Osm • Urine ... #Differential # ... #nephrology #sodium
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... • Drugs • Pulmonary ... Hypo-osmolar urine ... suppression • Primary polydipsia ... #Nephrology #Differential
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... - Primary Polydipsia ... Pulmonary Diseases ... Algorithm #diagnosis #nephrology ... #sodium
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... • Drugs • Pulmonary ... Hypo-osmolar urine ... suppression • Primary polydipsia ... #Nephrology #Differential
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential ... water loss, Serum Sodium ... 145 mmol/L High Urine ... #Nephrology #Differential
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... Workup Algorithm ... 1) Check Urine ... #Algorithm #nephrology ... #sodium
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
volume-based algorithm Urine ... intake (Primary polydipsia ... #differential # ... diagnosis #table ... #sodium #nephrology
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
diabetes insipidus Differential ... intoxication Initial Workup ... Osm, Serum Sodium ... , Urine Sodium ... diagnosis #management #nephrology
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
is usually caused ... 3 questions to work ... Measure urine osmolality ... Treatment #management #nephrology ... #sodium