16 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diagnosis Algorithm ... - Diabetes Insipidus ... history Step #2 ... #Sodium #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... Workup Algorithm ... renal mechanism 2) ... Euvolemic: Diabetes insipidus ... #nephrology #sodium
Hypernatremia Diagnosis and Workup

Step 1 . Repeat the sodium concentration.
Step 2.  Check plasma osmolality.
NORMAL PLASMA
Repeat the sodium ... Step 2. ... • psychogenic polydipsia ... Diagnosis #Workup #Algorithm ... #Nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
- Differential ... Diagnosis Algorithm ... water loss, Serum Sodium ... kg • Diabetes Insipidus ... #Nephrology #Differential
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Diagnosis Algorithm ... Serum Osmolarity 2) ... #Differential # ... #nephrology #sodium
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Hyponatremia - Differential ... Diagnosis Algorithm ... - Primary Polydipsia ... #diagnosis #nephrology ... #sodium
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Diagnosis Algorithm ... Urine osmolality = 2 ... kg • Diabetes Insipidus ... • Primary Polydipsia ... #nephrology
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
Differential Diagnosis ... , Dehydration: neurologic ... water unavailable 2) ... post-obstructive 3) Diabetes Insipidus ... #sodium
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
• Symptomatic hyponatremia ... occurs in only 2- ... Differential Diagnosis ... : Diabetes Insipidus ... , Urine Sodium
Classification of Diabetes Insipidus

Central or neurogenic diabetes insipidus:
 - Congenital - Structural malformations affecting the hypothalamus
mutations in AQP-2 ... demeclocycline) Primary polydipsia ... Treatment is aimed ... Classification #Types #Nephrology ... #Diagnosis #Differential