17 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
water retention 1) ... Urine Osmolarity 3) ... Uric Acid → SIADH ... #Algorithm #nephrology ... #sodium #low #uricacid
Cerebral Salt Wasting vs SIADH - Pathophysiology 
1) Neurological event
2) Sodium loss from tubules
3) Naturiesis →
Pathophysiology 1) ... Neurological event 2) Sodium ... from tubules 3) ... #nephrology #hyponatremia ... #comparison
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Diagnosis Algorithm ... Workup Step #1 ... Uglucose Step #3 ... #nephrology #insipidus ... #DI
Hypernatremia Classification and Features According to Volume Status
 - Hypervolemic hypernatremia - Cushing's syndrome, Primary hyperaldosteronism,
- DI, Central Dl ... DI, Nephrogenic ... Classification #Features #Diagnosis ... #Comparison #Table ... #Nephrology
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... Workup Step 1 ... Repeat the sodium ... EUVOLEMIC • SIADH ... #Algorithm #Nephrology
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia ... OFF (UNa > 30): SIADH ... Primary polydipsia, Low ... #Algorithm #diagnosis ... #sodium #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... Workup Algorithm 1) ... • Euvolemic (Low ... Workup #Algorithm #nephrology ... #sodium
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
urine osm (in DI ... post-obstructive 3) ... Diabetes Insipidus: neurogenic ... Treatment #management #nephrology ... #sodium
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Based Approach to Hyponatremia ... uric acid <4 • SIADH ... Hypothyroidism, Low ... #algorithm #diagnosis ... #sodium #low #nephrology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
+K / serum Na >1 ... , Renal Sodium loss ... can be high or low ... #differential #diagnosis ... #nephrology