Liver Function Test (LFT)
Also known as: LFT, Liver Panel
A group of blood tests that show how well the liver is working and whether it is inflamed.
Why it's done
- Investigate jaundice
- Monitor fatty liver and hepatitis
- Check medicine side effects
What it measures
Bilirubin, SGOT (AST), SGPT (ALT), alkaline phosphatase, total protein and albumin.
Preparation
Usually no fasting; follow lab instructions.
Normal range
Bilirubin below about 1.2 mg/dL; SGPT and SGOT below about 40 U/L (varies by lab)
Understanding results
Raised enzymes suggest liver inflammation; raised bilirubin causes jaundice.
Related conditions
Ordered by
Frequently asked questions
Why is the Liver Function Test (LFT) test done?
Investigate jaundice, Monitor fatty liver and hepatitis, Check medicine side effects
How do I prepare for Liver Function Test (LFT)?
Usually no fasting; follow lab instructions.
What is the normal range for Liver Function Test (LFT)?
Bilirubin below about 1.2 mg/dL; SGPT and SGOT below about 40 U/L (varies by lab)
Medically reviewed by
Medical review pending
Last updated
9 October 2026
Sources
- ICMR standard treatment workflows
- Reference ranges vary by laboratory - always read your report with your doctor
This information is for general awareness and does not replace advice from a qualified doctor. Do not start, stop or change any medicine without medical advice.