23 results
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Gl tract loss (Diarrhea ... Aldosterone: Liddle's Syndrome ... SAME, Cushing Syndrome ... diuretics, Bartter syndrome ... , Gitelman syndrom
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
losses - Chronic diarrhea ... renal Mg wasting syndromes ... - Gitelman syndrome ... - Hungry bones syndrome ... #Table #Classification
Hypermagnesemia - Etiologies by Mechanism
Renal Failure 
Excessive Mg Administration 
 - Massive PO intake
intake - Magnesium ... - Tumor lysis syndrome ... Hypermagnesemia #Differential ... #Table #Causes ... #Management
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
↓ Aldosterone: Syndrome ... excess, Liddle's syndrome ... Diuretics, Bartter syndrome ... , Gitelman syndrome ... #potassium #nephrology
Chronic Diarrhea - Differential Diagnosis Algorithm
Steatorrhea
 - Maldigestive
    • Pancreatic Insufficiency
 - Primary
Chronic Diarrhea ... Irritable Bowel Syndrome ... Irritable Bowel Syndrome ... Hyperthyroidism Osmotic • Magnesium ... • Carcinoid Syndrome
Hypokalemia - Differential Diagnosis Algorithm

Transcellular Shift:
 • Alkalosis
 • ↑ beta-2 adrenergic simulation 
 • Erythropoiesis
Hypokalemia - Differential ... • Refeeding syndrome ... losses (NG suction, diarrhea ... Diagnosis #Algorithm #nephrology ... #low #potassium
Causes of Hypomagnesemia
 • Redistribution: IV glucose, Correction of diabetic ketoacidosis, IV hyperalimentation, Refeeding after starvation,
Postparathyroidectomy (hungry bone syndrome ... metastasis (hungry bone syndrome ... biliary fistula, Diarrhea ... Endocrine disorders: Syndrome ... #magnesium #low
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Diuretics, Bartter's syndrome ... , Gitelman's syndrome ... acid, Liddle's syndrome ... • Cushing's syndrome ... #potassium
Algorithm for patients with hypokalemia on the basis of the potassium-to-creatinine ratio in the urine
Urine K+
Aldosterone: Cushing syndrome ... 17alpha-hydroxylase deficiency, Syndrome ... excess, Liddle syndrome ... deficiency, Bartter syndrome ... , Gitelman syndrome
Gitelman Syndrome Overview

What?
• Inherited (AR) hypokalemic salt-losing tubulopathies affecting the thiazide-sensitive sodium chloride cotransporter
• Gitelman's syndrome
Gitelman Syndrome ... • Gitelman's syndrome ... Hypocalciuria (spot ... ratio 0.5%) Differential ... • Magnesium