6 results
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
restriction alone in SIADH ... Present (Uosm ≥100): SIADH ... , Renal Sodium loss ... , Hypervolemia with ... #differential #
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Salt Wasting vs SIADH ... Neurological event 2) Sodium ... → ADH → water reabsorption ... diagnosis #nephrology #hyponatremia ... #comparison
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... Diagnosis Algorithm Hypovolemic ... • UOsm > 300 - ADH ... , SSRIs) - SIADH ... diagnosis #nephrology #sodium
Hyponatremia (<135 mEq/L) is a common electrolyte abnormality caused by an excess of total body water
body water in comparison ... osmolality helps to differentiate ... Another important physiological ... #hyponatremia #ADH ... EBV #potomania #SIADH
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
majority of cases, ADH ... work through a physiologic ... 2) Is ADH elevated ... #Differential # ... management #nephrology #sodium
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
Primary Polydipsia Physiology ... with suppressed ADH ... diabetes insipidus Differential ... Pseudohyponatremia, SIADH ... , Urine Sodium