40 results
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... insipidus • Nephrogenic ... administration #Hypernatremia ... Differential #Diagnosis #Causes ... #nephrology #sodium
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 ... EUVOLEMIC • SIADH ... Workup #Algorithm #Nephrology
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Osmolarity 3) Urine Sodium ... Low Uric Acid → SIADH ... Diagnosis #Algorithm #nephrology ... #sodium #low #uricacid
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Salt Wasting vs SIADH ... Neurological event 2) Sodium ... #SaltWasting #SIADH ... Pathophysiology #diagnosis #nephrology ... #hyponatremia #
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... treat underlying cause ... , SSRIs) - SIADH ... Algorithm #diagnosis #nephrology ... #sodium
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia ... Algorithm Hypertonic Hyponatremia ... OFF (UNa > 30): SIADH ... Algorithm #diagnosis #sodium ... #nephrology
Management of SIADH
Treat underlying cause:
 • Causes can include pain, primary lung pathology, post-operative phenomenon, medications,
Management of SIADH ... promoting passive sodium ... SatyaPatelMD #SIADH ... #Management #hyponatremia ... #nephrology #treatment
Diagnosis and Management of Hypernatremia

#Hypernatremia #Differential #Algorithm #Causes #Nephrology #Diagnosis

** GrepMed Recommended Text: Nephrology Secrets -
Diagnosis and Management ... of Hypernatremia ... #Hypernatremia ... Differential #Algorithm #Causes ... #Nephrology #Diagnosis
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
time you have a case ... restriction alone in SIADH ... Present (Uosm ≥100): SIADH ... , Renal Sodium loss ... #nephrology
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... Inappropriate - Consider: SIADH ... @NephroMD #hyponatremia ... differential #algorithm #causes ... #nephrology