1886 results
Liver Chemistries - Interpretation of LFTs

R-value: Serum (ALT/ULN ALT) / (Alk phos/ULN ALP)
 • R >
R-value: Serum (ALT ... /ULN ALT) / (Alk ... • AST/ALT > ALP ... > AST/ALT: typical ... Kidney, Brain • ALT
Abnormal Liver Function Tests - Differential Diagnosis Algorithm for Transaminitis
Hepatocellular Pattern (ALT or AST > ALP):
or AST > ALP): ... • Severe - ALT ... • Moderate - ALT ... Others • Mild - ALT ... > ALT or AST):
Liver Function Test (LFTs) Elevation
AST - Cardiac and skeletal muscle, kidney, brain
ALT - More specific for
LFTs) Elevation AST ... kidney, brain ALT ... Alkaline Phosphatase, ALT ... ULN R Value = (ALT ... / ULN ALT) / (ALP
Liver Enzymes (LFTs) - Causes of Hepatocellular and Cholestatic Liver Injury
Hepatocellular Liver Injury
 • AST/ALT elevation
Liver Injury • AST ... /ALT elevation > ... Alk phos • ALT ... • R value = (ALT ... + ULN ALT) / (alkaline
Standardized Physical Abuse Guideline
<6 months of age
 • Social work consult
 • Skeletal survey
 • Head
, ALT, lipase ... Abdominal CT if AST ... or ALT 80 • Troponin ... months of age if AST ... or ALT> 80, signs
Acute Liver Injury - Differential Diagnosis Algorithm

Vascular Causes of Acute Liver Injury: 
 • Hepatic vein:
to liver than ALT ... • ALT: Specific ... • AST/ALT > ALP ... : ↑ • ALT: ↑ ... kidney, brain • ALT
Features of Components of Liver Function Tests #Diagnosis #IM #GI #LFTs #Liver #Function #Tests #Locations #AlkPhos
Locations #AlkPhos #AST ... #ALT #Ddxof
Gestational Hypertension & Preeclampsia

Gestational Hypertension (gHTN) 
• BP > 140/90 
• Onset > 20 wks gestation
Thrombocytopenia • Elevated AST ... /ALT • Pulmonary ... Thrombocytopenia • Elevated AST ... /ALT • Hemolysis
Elevated Liver Enzymes - Differential Diagnosis Algorithm
Severe ALT > 15x ULN
 • Viral
 • Drugs/Toxins
 •
Algorithm Severe ALT ... HELLP Moderate ALT ... • Others Mild ALT
Liver Function Tests (LFTs)
 - Aspartate aminotransferase (AST) 
 - Alanine aminotransferase (ALT) 
 - Alkaline
aminotransferase (AST ... aminotransferase (ALT