67 results
Causes of Hypokalemia - Differential Diagnosis Algorithm
Defining the cause of hypokalemia starts by measuring urinary K
Causes of Hypokalemia ... Diuretics, Bartter's syndrome ... , Gitelman's syndrome ... acid, Liddle's syndrome ... • Cushing's syndrome
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Aldosterone: Liddle's Syndrome ... SAME, Cushing Syndrome ... diuretics, Bartter syndrome ... , Gitelman syndrom ... Diagnosis #Algorithm #causes
Reflex Testing - Causes of Hyporeflexia and Hyperreflexia
Focal Hyporeflexia: 
 • Radiculopathy, Mononeuropathy, Polyneuropathy, Acute stroke,
Guillain-Barré syndrome ... Hyperreflexia: • Hypocalcemia ... Hyperthyroidism, Serotonin syndrome ... differential #diagnosis #table ... #neurology
Causes of HyperKalemia - Differential Diagnosis
Increased extracellular K+:
 • Tissue injury
 • Hemolysis
 • Rhabdomyolysis
 •
Causes of HyperKalemia ... • Tumor lysis syndrome ... blockers - MCW Nephrology ... MCW_Nephrology #HyperKalemia ... Differential #Diagnosis #Causes
Causes of Sudden Cardiac Arrest
Primary Myocardial Processes (> 90%):
 • Acquired structural heart disease: CAD, Most
QT syndromes, Brugada ... syndrome, Catecholaminergic ... Acquired long QT syndrome ... disorders • WPW syndrome ... Cardiac #Arrest #cardiology
Causes of Hypokalemia - Differential Diagnosis Algorithm
Increased Loss 
 - Increased GI Loss
 - Increased Urinary
Causes of Hypokalemia ... K-ATPase which imports ... - Refeeding Syndrome ... #Hypokalemia ... Diagnosis #Algorithm #causes
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
renal Mg wasting syndromes ... - Gitelman syndrome ... - Hungry bones syndrome ... Low #Magnesium #Table ... Classification #Causes
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
wasting from other causes ... ↓ Aldosterone: Syndrome ... excess, Liddle's syndrome ... Diuretics, Bartter syndrome ... , Gitelman syndrome
Hypokalemia Differential Diagnosis Algorithm
Hypertensive:
 • High Al, Low R - Primary aldosteronism
 • High Al, High
acid, Liddle's Syndrome ... R - Cushing's syndrome ... Diuretics, Bartter's syndrome ... , Gitelman's syndrome ... #causes #low #potassium
Causes of Hyponatremia - Differential Diagnosis Algorithm
Syndrome of Inappropriate ADH - Euvolemic; no physiologic stimulus to
Causes of Hyponatremia ... Diagnosis Algorithm Syndrome ... Pain/Post-op • Neurologic ... Malignancy True hypovolemia ... • Nephrotic syndrome