12 results
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
Function Test (LFTs ... ≥ 2x ULN R Value ... Hepatocellular injury ... #FunctionTest #LFTs ... Transaminitis #diagnosis #hepatology
Elevated Liver Function Tests (LFTs) - Differential Diagnosis Framework
Mild (<100-500): 
 • NAFLD
 • Cirrhosis
 •
Function Tests (LFTs ... ) - Differential ... Drug-induced liver injury ... #Differential # ... Diagnosis #hepatology
Patterns of Liver Injury
Transaminase Levels:
  > 50x normal - Ischemic Hepatitis
  > 20x normal
Patterns of Liver Injury ... , Toxic Hepatitis ... Patterns #Liver #Injury ... #hepatology #LFTs ... transaminitis #differential
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 ... #Hepatology #transaminitis ... #LFTs #RValue #
Liver Enzymes (LFTs) - Causes of Hepatocellular and Cholestatic Liver Injury
Hepatocellular Liver Injury
 • AST/ALT elevation
Liver Enzymes (LFTs ... • R value = (ALT ... Liver #Enzymes #LFTs ... Transaminitis #diagnosis #differential ... #hepatology
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
Liver Enzymes - Differential ... • Pregnancy - AFLP ... • Alcoholic hepatitis ... • Others #LFTs ... #Hepatology #LiverEnzymes
Hepatocellular Liver Injury - Differential Diagnosis Framework:
Liver Injury → liver test abnormalities without evidence of liver
- Differential ... • Infections: Hepatitis ... Diagnosis #hepatology ... Transaminitis #LFTs ... #hepatitis
Diagnosis and Management of Idiosyncratic Drug-induced Liver Injury (DILI)

DILI Types:
 • Intrinsic - predictable, dose dependent
dose dependent injury ... Chronic - ongoing ↑ LFTs ... Calculate R-Value ... Idiosyncratic #differential ... gastroenterology #hepatology
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
- Differential ... Autoimmune: Autoimmune hepatitis ... Chronic viral hepatitis ... #hepatitis #differential ... diagnosis #algorithm #hepatology
Acute Fatty Liver of Pregnancy (AFLP)
Pathophysiology:
 • Defect in fetal free fatty acid metabolism products →
of Pregnancy (AFLP ... ) Pathophysiology ... infiltration) Differential ... Diagnosis: Viral Hepatitis ... Liver #Pregnancy #hepatology