14 results
Differential diagnosis for toxic/metabolic encephalopathies - Patterns on Brain Imaging

Cynthia Czawlytko, MD @drcyncity

#Differential #diagnosis #encephalopathies #encephalopathy
Differential diagnosis ... for toxic/metabolic ... imaging #patterns #MRI ... #Neurology #pathology ... #diseases #radiology
Hypokalemia - Differential Diagnosis Algorithm
Extra-renal Losses:
 • Normal Acid-Base: Low intake
 • Metabolic acidosis: Gl tract
Hypokalemia - Differential ... Diagnosis Algorithm ... Low intake • Metabolic ... #causes #potassium ... #low #nephrology
Imaging Patterns of Toxic and Metabolic Brain Disorders

Thalami, Mammillary Bodies and Tectum: Wernicke Encephalopathy
Dentate Nuclei: Metronidazole,
Patterns of Toxic and Metabolic ... Pons: ODS #MRI ... Disorders #Clinical #Differential ... #Diagnosis #Radiology ... #Neurology
Hypokalemia Evaluation Algorithm

Before evaluating hypokalemia, life threatening complications such as arrhythmias and paralysis should be looked
treated with IV potassium ... Pressure: - Metabolic ... #Hypokalemia #diagnosis ... #Algorithm #differential ... #potassium #nephrology
Metabolic Alkalosis - Urinary Chloride Algorithm
Cl- responsive metabolic alkalosis
 • Kidney loss of Cl-
Metabolic Alkalosis ... of sodium and potassium ... urine #Algorithm #nephrology ... #differential # ... diagnosis
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... Diagnosis Framework ... infusions) - Metabolic ... #potassium #high ... #nephrology
Hyperkalemia - Differential Diagnosis Framework

PseudoHyperkalemia:
 • Lab error
 • Traumatic venipuncture
 • Hemolysis, thrombocytosis, leukocytosis
 •
Hyperkalemia - Differential ... Diagnosis Framework ... infusions) - Metabolic ... #potassium #high ... #nephrology
CNS Ring-Enhancing Lesions - Immunocompromised vs Immunocompetent
Multiple Ring-Enhancing Lesions:
 • Toxoplasmosis (CD4 < 100)
 • Other
Chorioretinitis • Diagnosis ... Compatible syndrome + MRI ... Lesions #Brain #differential ... #diagnosis #causes ... #radiology #neurology
Causes of Metabolic Alkalosis: Differential Diagnosis
ECF volume contracted: urine chloride concentration <20 meq/L
 • Gastric alkalosis:
Alkalosis: Differential ... Diagnosis ECF ... other • Severe potassium ... #Diagnosis #Causes ... #nephrology
Causes of High-anion Gap and Non-anion Gap Metabolic Acidosis
Causes of High-anion Gap Acidosis:
 • Lactic acidosis
Non-anion Gap Metabolic ... Potassium-sparing ... #Acidosis #differential ... #diagnosis #causes ... #nephrology