• Prevention & Diagnosis

• 
  Vaccine
  • Vaccine Schedules
  • Vaccine Safety
  • Vaccine Non-Responders
  • U.S. Universal Adult Vaccination and Screening
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  • History
• Transmission
• Prevention Tips
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  Blood Tests for Diagnosis of Hepatitis B
  • Blood Tests for Diagnosing Hepatitis B
  • Understanding Your Test Results
  • Tests for Evaluating and Monitoring your Hepatitis B
  • Hepatitis B Blood Tests
  • Blood Tests
  • Imaging/ Radiology (Ultrasound, Fibroscan, CT, MRI)
  • Non-Invasive Calculations to Predict Liver Damage
  • Blood Tests Your Doctor May Order
• Newly Diagnosed
• Prevention Education Resources

Non-Invasive Calculations to Predict Liver Damage

APRI and FIB-4

Talk to your doctor about using non-invasive calculations such as AST to Platelet Ratio Index (APRI) and Fibrosis-4 index for Liver Fibrosis (FIB-4) to determine if there is evidence of liver disease. Ask for a copy of blood test results which are required for use with these calculators. Although you can use the calculators yourself, you’ll want to discuss your results with your health care provider. 

 

APRI calculator requires AST, AST upper limit of normal range and platelet count. (FIB-4) calculator requires Age, AST, Platelet count and ALT. It is highly recommended to ask your doctor about these calculators and their potential significance regarding the health of your liver.

You can learn more about AST, ALT and Platelet count blood tests here.