76 results
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... Repeat the sodium ... mmol/L - true hyponatremia ... • nephrotic syndrome ... Workup #Algorithm #Nephrology
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... cirrhosis, nephrotic syndrome ... Algorithm #diagnosis #nephrology ... #sodium
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia ... Algorithm Hypertonic Hyponatremia ... Cirrhosis, Nephrotic syndrome ... Algorithm #diagnosis #sodium ... #nephrology
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Wasting vs SIADH - Pathophysiology ... Neurological event 2) Sodium ... SaltWasting #SIADH #Pathophysiology ... #diagnosis #nephrology ... #hyponatremia #
Causes of Hyponatremia - Differential Diagnosis Algorithm
Hypovolemia, UNa > 20: 
 • Renal losses, Diuretic excess,
Causes of Hyponatremia ... tubal acidosis and metabolic ... Cardiac failure #Hyponatremia ... Diagnosis #Algorithm #Causes ... #nephrology
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... administration #Hypernatremia ... Differential #Diagnosis #Causes ... #nephrology #sodium
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... Diagnosis Algorithm Hypernatremia ... water loss, Serum Sodium ... #Nephrology #Differential ... Diagnosis #Algorithm #Causes
Gitelman Syndrome Pathophysiology
Gitelman Syndrome is a rare autosomal recessive salt-losing tubulopathy with a prevalence of 1-
Pathophysiology ... thiazide-sensitive sodium-chloride ... → Hypokalemia Metabolic ... #Pathophysiology ... #nephrology #diagnosis
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Diagnosis Algorithm Syndrome ... • Nephrotic syndrome ... #Nephrology #Differential ... Diagnosis #Algorithm #Causes
Hyponatremia - Diagnosis and Treatment
Hyponatremia is usually caused by the inability to excrete water normally.
is usually caused ... the underlying cause ... demyelination syndrome ... Treatment #management #nephrology ... #sodium