13 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Algorithm - Diabetes Insipidus ... history Step #2 ... Management #Algorithm #Sodium ... #nephrology #insipidus
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Causes of Hypernatremia ... - Differential ... #Differential # ... Diagnosis #Causes #nephrology ... #sodium #high
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... Serum Osmolarity 2) ... Osmolarity 3) Urine Sodium ... #Differential # ... Diagnosis #Algorithm #nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Differential Diagnosis ... renal mechanism 2) ... Euvolemic: Diabetes insipidus ... Workup #Algorithm #nephrology ... #sodium
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Causes of Hypernatremia ... - Differential ... water loss, Serum Sodium ... kg • Diabetes Insipidus ... #Nephrology #Differential
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
, Dehydration: neurologic ... water unavailable 2) ... post-obstructive 3) Diabetes Insipidus ... Treatment #management #nephrology ... #sodium
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
cell epithelial sodium ... of epithelial sodium ... Nephrogenic diabetes insipidus ... Defects #Kidney #Nephrology ... #Diagnosis #Differential
Hyponatremia Diagnostic Algorithm
1) Check serum osmolality
2) Check urine osmolality
3) ADH Dependent - Check volume status, urine
Hyponatremia Diagnostic ... serum osmolality 2) ... status, urine sodium ... Diagnosis #Algorithm #differential ... nephrology
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... Plasma AND • Sodium ... Osmolality, Urine 1-2 ... Diagnosis #Algorithm #nephrology ... #differential
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
occurs in only 2- ... Differential Diagnosis ... : Diabetes Insipidus ... , Urine Sodium ... diagnosis #management #nephrology