276 results
Liver Function Tests (LFTs)
 - Aspartate aminotransferase (AST) 
 - Alanine aminotransferase (ALT) 
 - Alkaline
Function Tests (LFTs ... aminotransferase (ALT ... Function #Tests #LFTs
Liver Enzymes (LFTs) - Causes of Hepatocellular and Cholestatic Liver Injury
Hepatocellular Liver Injury
 • AST/ALT elevation
Liver Enzymes (LFTs ... Injury • AST/ALT ... > Alk phos • ALT ... • R value = (ALT ... Liver #Enzymes #LFTs
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
Function Test (LFTs ... kidney, brain ALT ... ULN R Value = (ALT ... / ULN ALT) / (ALP ... #FunctionTest #LFTs
Features of Components of Liver Function Tests #Diagnosis #IM #GI #LFTs #Liver #Function #Tests #Locations #AlkPhos
Diagnosis #IM #GI #LFTs ... #AlkPhos #AST #ALT
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
: • Severe - ALT ... • Moderate - ALT ... Others • Mild - ALT ... Pattern (ALP > ALT ... Burak @kwburak #LFTs
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
Algorithm Severe ALT ... HELLP Moderate ALT ... • Others Mild ALT ... • Others #LFTs
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
Interpretation of LFTs ... R-value: Serum (ALT ... /ULN ALT) / (Alk ... to liver than ALT ... transaminitis #LFTs
Hepatocellular Liver Injury - Differential Diagnosis Framework:
Liver Injury → liver test abnormalities without evidence of liver
increase in AST/ALT ... compared with AST/ALT ... Transaminitis #LFTs
Liver Function Tests (LFTs) - Normal Values and Interpretation

Alanine aminotransferase (ALT/SGPT) - Liver, cardiac & skeletal
Function Tests (LFTs ... aminotransferase (ALT ... Function #Tests #LFTs
Liver Chemistry Tests - AST, ALT, Alkaline Phosphatase and Bilirubin Metabolism
AST and ALT:
 • AST: liver
Chemistry Tests - AST, ALT ... Metabolism AST and ALT ... cytoplasmic (CAST) • ALT ... Pathophysiology #Diagnosis #LFTs