11 results
Localization of Renal Tubular Defects
Fanconi Syndrome: Proximal tubule
Bartter Syndrome: Thick ascending loop of Henle
Gitelman Syndrome: Distal
Bartter Syndrome ... loop of Henle Gitelman ... #Fanconi #Bartter ... Nephron #Defects #Pathophysiology ... #Nephrology
Gitelman Syndrome Pathophysiology
Gitelman Syndrome is a rare autosomal recessive salt-losing tubulopathy with a prevalence of 1-
Gitelman Syndrome ... Pathophysiology ... Gitelman Syndrome ... Hypokalemia Metabolic alkalosis ... #Syndrome #Pathophysiology
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... Cl-: Diuretics, Bartter ... Syndrome, Gitelman ... Diagnosis #Algorithm #Nephrology ... #Causes
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Causes of Metabolic ... actively working • Bartter ... furosemide-like lesion) • Gitelman ... Differential #Diagnosis #Causes ... #nephrology
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
Gitelman Syndrome ... distal convoluted tubule ... • Bartter syndrome ... • Pseudo Bartter-Gitelman ... #pathophysiology
Hypochloremia - Differential Diagnosis Algorithm

Cause - Decreased Intake:
 • Low salt in diet
 • Exclusive D5W
- Metabolic alkalosis ... - Diuresis - Bartter ... - Gitelman ... SIGNS: • Muscle ... Diagnosis #Algorithm #Pathophysiology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
diuretic use, Bartter ... syndrome, Gitelman ... syndrome, Hypomagnesemia ... in the proximal tubule ... the indicated causes
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
wasting from other causes ... suggests extra-renal causes ... - Metabolic Alkalosis ... Emesis, Diuretics, Bartter ... syndrome, Gitelman
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Primary Metabolic Alkalosis ... Cl-: Diuretics, Bartter ... Syndrome, Gitelman ... Diagnosis #Algorithm #Nephrology ... #Causes
Causes of Hypokalemia
Transcellular Shifts:
 - Alkalosis, Increased plasma insulin (treatment of diabetic ketoacidosis), ß-Adrenergic agonists, Hypokalemic
Causes of Hypokalemia ... Transcellular Shifts: - Alkalosis ... Osmotic diuresis, Bartter's ... diuretic use), Gitelman's ... #Hypokalemia #Causes