12 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Hypernatremia Differential ... Diagnosis Algorithm - Diabetes ... Hypernatremia #Management ... #Algorithm #Sodium ... #nephrology #insipidus
Causes of Hypernatremia - Differential Diagnosis
Inadequate water intake:
 • Lack of access to water
Extrarenal hypotonic fluid
Hypernatremia - Differential ... insipidus • Nephrogenic ... diabetes insipidus ... Diagnosis #Causes #nephrology ... #sodium #high
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... Plasma AND • Sodium ... #Insipidus #Diagnosis ... #Algorithm #nephrology ... #differential
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Hyponatremia Differential ... water retention 1) Serum ... 4) Serum Uric Acid ... salt wasting By Rachel ... Diagnosis #Algorithm #nephrology
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
free water loss, Serum ... Sodium >145 mmol ... 300 mmol/kg • Diabetes ... Insipidus Hypodipsia ... Hypernatremia #Nephrology
Causes of Polyuria - Differential Diagnosis Algorithm
Polyuria - Urine Output > 3L/day, Increased Urine Volume (>2ml/min)
Osmotic
of Polyuria - Differential ... Urine Osmolality > Serum ... Insipidus - DDAVP ... Insipidus #Polyuria ... #Nephrology #Differential
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - Differential ... • Euvolemic: Diabetes ... insipidus (central ... Workup #Algorithm #nephrology ... #sodium
Primary Polydipsia
Definition: Excessive volitional water intake
Epidemiology:
 • 6-20% of patients with psychiatric disorders - Most commonly
insipidus Differential ... Diagnosis: Diabetes ... Sodium, Urine Sodium ... Polydipsia #diagnosis #management ... #nephrology
Inherited Defects in Kidney Tubule Epithelial Cells

Renal glucosuria - Na+-dependent glucose cotransporter
Cystinuria - Amino acid transporter
Bartter
of epithelial sodium ... ATPase Nephrogenic diabetes ... insipidus - Vasopressin ... Defects #Kidney #Nephrology ... #Diagnosis #Differential
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
The differential ... post-obstructive 3) Diabetes ... Insipidus: neurogenic ... Diagnosis #Treatment #management ... #nephrology #sodium