21 results
Elevated Liver Function Tests (LFTs) - Differential Diagnosis Framework
Mild (<100-500): 
 • NAFLD
 • Cirrhosis
 •
Tests (LFTs) - ... Differential Diagnosis ... Chronic Viral Hepatitis ... #Differential # ... Diagnosis #hepatology
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
(LFTs) Elevation ... ≥ 2x ULN R Value ... #FunctionTest #LFTs ... Transaminitis #diagnosis ... #hepatology
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
Interpretation of LFTs ... R-value: Serum ... #chemistry #diagnosis ... #differential # ... #LFTs #RValue #
Acute Fatty Liver of Pregnancy (AFLP)
Pathophysiology:
 • Defect in fetal free fatty acid metabolism products →
of Pregnancy (AFLP ... ) Pathophysiology ... postpartum): • Initial symptoms ... infiltration) Differential ... Hepatitis, Preeclampsia
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
Elevated Liver Enzymes ... - Differential ... • Pregnancy - AFLP ... • Alcoholic hepatitis ... • Others #LFTs
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
Abnormal Liver Function ... Tests - Differential ... Diagnosis Algorithm ... Burak @kwburak #LFTs ... #hepatology #LiverFunctionTests
Patterns of Liver Injury
Transaminase Levels:
  > 50x normal - Ischemic Hepatitis
  > 20x normal
Patterns of Liver ... #Injury #hepatology ... #LFTs #transaminitis ... #differential # ... diagnosis
Liver Enzymes (LFTs) - Causes of Hepatocellular and Cholestatic Liver Injury
Hepatocellular Liver Injury
 • AST/ALT elevation
Liver Enzymes (LFTs ... • R value = (ALT ... Transaminitis #diagnosis ... #differential # ... hepatology
Hepatocellular Liver Injury - Differential Diagnosis Framework:
Liver Injury → liver test abnormalities without evidence of liver
Diagnosis Framework ... Infections: Hepatitis ... #Diagnosis #hepatology ... Transaminitis #LFTs ... #hepatitis
Diagnosis and Management of Idiosyncratic Drug-induced Liver Injury (DILI)

DILI Types:
 • Intrinsic - predictable, dose dependent
Diagnosis and Management ... Chronic - ongoing ↑ LFTs ... or symptoms of ... Calculate R-Value ... Idiosyncratic #differential