14 results
Hypernatremia Differential Diagnosis Algorithm - Diabetes Insipidus Workup

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

1) Check Urine Osmolality:
 > 600 mOsm/kg - Implies extrarenal mechanism
Hypernatremia - Differential ... 1) Check Urine ... • Euvolemic: Diabetes ... insipidus (central ... #nephrology #sodium
Diabetes Insipidus - Diagnosis Algorithm
Tests:
 • Osmolality, Urine AND/OR
 • Osmolality, Serum or Plasma AND
 •
Diabetes Insipidus ... Plasma AND • Sodium ... Osmolality, Urine 1- ... #Algorithm #nephrology ... #differential
Causes of Hypernatremia - Differential Diagnosis Algorithm
Hypernatremia - Excess free water loss, Serum Sodium >145 mmol/L
High
Diagnosis Algorithm ... water loss, Serum Sodium ... 300 mmol/kg • Diabetes ... Insipidus Hypodipsia ... Hypernatremia #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 ... ATPase Nephrogenic diabetes ... insipidus - Vasopressin ... #Diagnosis #Differential
Hyperkalemia: Diagnostic algorithm
Decreased renal potassium excretion
 • Acute renal failure
 • Chronic renal failure
 • Drugs
Increased
Hyperkalemia: Diagnostic algorithm ... • Drugs • Diabetic ... type 2 • Type 1 ... #nephrology #potassium ... #differential
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Diagnosis Algorithm ... acidosis (type 1 ... Ureterosigmoidostomy, Diabetic ... #causes #nephrology ... #potassium
Hyponatremia - Differential Diagnosis Algorithm
Hypovolemic - Give volume
Hypervolemic (Edematous) - Look for and treat underlying cause
Diagnosis Algorithm ... cirrhosis, nephrotic syndrome ... Disease, Meds (Opiates ... #diagnosis #nephrology ... #sodium
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Urinary Chloride Algorithm ... , Gitelman syndrome ... metabolic acidosis • Diabetic ... and potassium acid ... #nephrology #differential
Hypernatremia - Differential Diagnosis and Treatment
Hypernatremia is almost always due to unreplaced water loss (free water
output is a clue). 1) ... post-obstructive 3) Diabetes ... Insipidus: neurogenic ... ([Na] / 140) - 1) ... #sodium