Liver function tests
Also written: LFT
What it measures
A group of enzymes and substances the liver produces or processes, including ALT, AST and bilirubin.
Why it is ordered
Often done when monitoring certain long-term medicines, or when there are signs related to the liver.
How to prepare
Declare every medicine, supplement and herbal product you take — this group affects the result.
Units
Bilirubin: mg/dL ↔ µmol/L (nhân 17,1) — convert here
What to ask
- Do my current medicines affect this result
- When should it be repeated
- What should I avoid before the next test
This page does not include reference ranges and does not say whether your number is high or low. Reference ranges differ between laboratories and between people — read yours on your own report, with your clinician.