What are liver function tests?

Liver function tests (LFTs) are a collection of blood parameters to assess for varying degrees of liver damage or abnormalities of liver function.

When would you need LFTs?

LFTs may be performed as screening test to exclude a liver problem as the cause of symptoms, including:

  • Abdominal pain
  • Jaundice (skin turning yellow)
  • Tiredness

LFTs may help to diagnose conditions such as:

  • Biliary colic (gallstones)
  • Cholecystitis (gallbladder inflammation)
  • Hepatitis (liver inflammation)
  • Liver cell damage related to a number of toxic substances, including alcohol and many drugs (paracetamol included)

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How is are LFTs performed?

LFTs require a sample of a few millilitres of blood.

Related specialists

Related procedures

  • Cholecystectomy
  • Endoscopic Retrograde Cholangiopancreatography (ERCP)

Related tests

  • Bilirubin
  • Alanine Aminotranferase (ALT)
  • Alkaline Phosphatase (ALP, Alk Phos)
  • Gamma Glutamyl Transferase (Gamma GT, GGT)
  • Albumin
  • Total Protein (TP)

Also known as

  • LFTs
  • LFs
  • Liver function tests



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This article is for informational purposes only and should not be taken as medical advice. If in doubt, HealthEngine recommends consulting with a registered health practitioner.

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