21 results
Elevated Liver Function Tests (LFTs) - Differential Diagnosis Framework
Mild (<100-500): 
 • NAFLD
 • Cirrhosis
 •
Elevated Liver Function ... Hepatopathy • Acute ... (>1000): • DILI ... injury) • Ischemic ... #hepatology #transaminitis
Patterns of Liver Injury
Transaminase Levels:
  > 50x normal - Ischemic Hepatitis
  > 20x normal
> 50x normal - Ischemic ... > 20x normal - Acute ... AST:ALT = 1 - Ischemia ... Viral Hepatitis, Ischemic ... #Injury #hepatology
Diagnosis and Management of Idiosyncratic Drug-induced Liver Injury (DILI)

DILI Types:
 • Intrinsic - predictable, dose dependent
Diagnosis and Management ... Injury (DILI) ... Chronic - ongoing ↑ LFTs ... #differential #Diagnosis ... gastroenterology #hepatology
Causes of Severe Acute Liver Injury
 - Ichemic hepatitis
 - Acute biliary obstruction
 - Drug-Induced liver
Liver Injury ... - Ichemic hepatitis ... injury - Viral ... #Differential #Hepatology ... #Diagnosis
Drug Induced Liver Injury (DILI) - Stepwise Diagnosis Algorithm
DILI suspicion
Features toxic aetiology: Skin involvement, Kidney injury,
Injury (DILI) - ... disease, Hepatic ischaemia ... dechallenge • Acute ... #Injury #Diagnosis ... #Algorithm #hepatology
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
(LFTs) Elevation ... abnormality vs bone Bili ... #FunctionTest #LFTs ... Transaminitis #diagnosis ... #hepatology
Hepatocellular Liver Injury - Differential Diagnosis Framework:
Liver Injury → liver test abnormalities without evidence of liver
Diagnosis Framework ... : Liver Injury ... • Vascular: Ischemic ... #Diagnosis #hepatology ... Transaminitis #LFTs
Elevated Transaminases / Transaminitis - Differential Diagnosis

 • Infectious: HAV, HCV, HEV, EBV, HSV, CMV
 •
Elevated Transaminases ... Trauma: Shock liver ... • Iatrogenic: DILI ... See Updated Schema ... #causes #hepatology
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
Elevated Liver Enzymes ... - Differential Diagnosis ... Drugs/Toxins • Ischemia ... • Others #LFTs ... #Hepatology #LiverEnzymes
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
Interpretation of LFTs ... specificity to elevated ... #chemistry #diagnosis ... #differential #Hepatology ... transaminitis #LFTs