33 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

Step #1 - Consider the history
Step #2 - Assess
Differential Diagnosis Algorithm ... - Diabetes Insipidus ... history Step #2 ... #Sodium #nephrology ... #insipidus #DI
Hyponatremia Differential Diagnosis Algorithm - Utilizing Uric Acid 
ADH promotes Urea/uric acid excretion along with water
Differential Diagnosis Algorithm ... Serum Osmolarity 2) ... Uric Acid - Low ... #nephrology #sodium ... #low #uricacid
True Hyponatremia Differential Algorithm

Instead (or in addition) of volume status examination, check urine sodium and serum
Hyponatremia Differential Algorithm ... low, uric acid ... and uric acid low ... #Differential #Algorithm ... #Diagnosis #Nephrology
Hypernatremia - Differential Diagnosis Workup Algorithm

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Diagnosis Workup Algorithm ... renal mechanism 2) ... • Euvolemic (Low ... Euvolemic: Diabetes insipidus ... #nephrology #sodium
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Differential Diagnosis Algorithm ... water loss, Serum Sodium ... mannitol, glucosuria Low ... kg • Diabetes Insipidus ... Hypernatremia #Nephrology
Polyuria - Differential Diagnosis Algorithm
Polyuria = >3L Urine output / 24 hours
Urine osmolality = 2 (Na
Differential Diagnosis Algorithm ... Urine osmolality = 2 ... nutrition), Azotemia LOW ... kg • Diabetes Insipidus ... #nephrology
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 ... - Vasopressin-2 ... Defects #Kidney #Nephrology
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... - Diagnosis Algorithm ... Plasma AND • Sodium ... Osmolality, Urine 1-2 ... #nephrology #differential
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting, NGT
Differential Diagnosis Algorithm ... Volume Depleted 2° ... Expanded 1° / 2° ... Differential #Diagnosis #Algorithm ... #nephrology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Differential Diagnosis Algorithm ... Volume Depleted - 2° ... Expanded - 1° or 2° ... Differential #Diagnosis #Algorithm ... #Nephrology #Causes