9 results
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... Solute Intake - Primary ... Polydipsia ... Algorithm #diagnosis #nephrology ... #sodium
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Vasopressin-independent - Consider: Primary ... polydipsia, Low ... #diagnosis #differential ... #algorithm #causes ... #nephrology
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... - Differential ... suppression • Primary ... polydipsia • ... #Nephrology #Differential
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... - Differential ... suppression • Primary ... polydipsia • ... #Nephrology #Differential
Hyponatremia - Differential Diagnosis by Mechanism
Decr Blood Pressure (“Decr Effective Circulating Volume”) 
 - Volume depletion
Hyponatremia - Differential ... renal failure - Primary ... polydipsia - ... Diagnosis #Table #Causes ... #Sodium
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
Primary Polydipsia ... diabetes insipidus Differential ... intoxication Initial Workup ... , Urine Sodium ... #management #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... water intake (Primary ... polydipsia), Low ... #differential # ... #nephrology
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
Then, ask 3 questions ... to work through ... #Differential # ... Treatment #management #nephrology ... #sodium
Hyponatremia - Differential Algorithm
Isotonic Hyponatremia: Hyperlipidemia, Hyperproteinemia, Recent TURP
Hypotonic Hyponatremia: 
 • Hypovolemia: Diuretics/Nephropathies, Vomiting, Diarrhea,
Hyponatremia - Differential ... Potomania, Psychogenic polydipsia ... #Differential # ... Algorithm #diagnosis #causes ... #nephrology #sodium