17 results
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... water retention 1) ... Uric Acid → SIADH ... Rachel Stern MD #Hyponatremia ... #nephrology #sodium
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Hypernatremia Diagnosis ... Workup Step 1 ... mmol/L - true hyponatremia ... EUVOLEMIC • SIADH ... renal failure #Hypernatremia
Modified Hyponatremia Algorithm
Hypertonic Hyponatremia: Hyperglycemia, Mannitol, Urologic irrigants
Hypotonic Hyponatremia: 
 • ADH ON (UOsm > 100):
Modified Hyponatremia ... Hyponatremia: Hyperglycemia ... irrigants Hypotonic Hyponatremia ... OFF (UNa > 30): SIADH ... Primary polydipsia, Low
Hyponatremia Diagnosis Algorithm
UOsm ≥ POsm - Vasopressin-Dependent
 • UNa < 20 mEq/L - Appropriate (↓ EABV)
Hyponatremia Diagnosis ... Inappropriate - Consider: SIADH ... Primary polydipsia, Low ... @NephroMD #hyponatremia ... #causes #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - ... 1) Check Urine ... Extrarenal Hypernatremia ... Ingestion Renal Hypernatremia ... MatthewHoMD #Hypernatremia
Hyponatremia - Differential Diagnosis Algorithm
ADH Independent:
 • Tea and Toast Syndrome, Beer Potomania - Low solute
Hyponatremia - Differential ... Beer Potomania - Low ... insufficiency, SIADH ... thecurbsiders #Hyponatremia ... #causes #nephrology
Volume Based Approach to Hyponatremia
Hypovolemic, Serum uric acid >4
 • Urine Na <20: Extra-renal losses
 •
Based Approach to Hyponatremia ... uric acid <4 • SIADH ... SatyaPatelMD #Volume #Hyponatremia ... #algorithm #diagnosis ... #sodium #low #nephrology
Hyponatremia Treatment Algorithm

CHF, Cirrhosis - Fluid restriction
SIADH - Fluid restriction
 - Consider salt tablets if etiology
Hyponatremia Treatment ... Fluid restriction SIADH ... water diuresis) 1° ... DrEricStrong #Hyponatremia ... #Management
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
Approach to Hypotonic Hyponatremia ... case of hypotonic hyponatremia ... normal volume-based algorithm ... +K / serum Na >1 ... Physiologic #Hypotonic #Hyponatremia
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Workup Step #1 ... DrEricStrong #Hypernatremia ... #Management #Algorithm ... #Sodium #nephrology