Check your liver health from the comfort of home. ALT, AST, ALP, GGT, bilirubin and albumin — all tested from a single venous blood draw by a professional phlebotomist.
Find a Phlebotomist →An LFT panel checks the enzymes and proteins that indicate how well your liver is working.
| Marker | What It Shows | Normal Range |
|---|---|---|
| ALT | Liver cell damage indicator | 7 - 56 U/L |
| AST | Liver and muscle damage | 10 - 40 U/L |
| ALP | Bile duct function | 44 - 147 U/L |
| GGT | Alcohol and drug-related liver stress | 9 - 48 U/L |
| Bilirubin | Waste product processing | 3 - 17 μmol/L |
| Albumin | Liver protein production | 35 - 50 g/L |
Even moderate alcohol consumption can affect liver enzymes over time. Regular testing helps catch problems before they become serious.
Statins, methotrexate, antibiotics and other drugs can stress the liver. Your doctor may request regular LFTs to monitor for side effects.
Non-alcoholic fatty liver disease (NAFLD) affects up to 1 in 3 people in the UK and is strongly linked to excess weight.
Unexplained nausea, abdominal pain, jaundice (yellowing of skin) or dark urine can indicate liver problems worth investigating.
Enter your postcode, choose a time slot, and select the liver function test. No GP referral required.
A DBS-checked mobile phlebotomist arrives at your home and collects a venous blood sample in under 10 minutes.
Your sample is dispatched to an accredited laboratory the same day. Results typically within one to three working days.
Fasting is not usually required for an LFT, but check with your requesting clinician.
Avoid alcohol for at least 24 hours before the test for accurate GGT results.
Tell your phlebotomist about any medications and supplements you are taking.
Stay well hydrated and wear loose sleeves.
Avoid strenuous exercise for 24 hours before the test, as it can raise AST levels.
A liver function test (LFT) measures enzymes and proteins produced by your liver. Key markers include ALT and AST (liver enzymes that rise with liver damage), ALP (bile duct enzyme), GGT (sensitive to alcohol-related damage), bilirubin (waste product processed by the liver), and albumin (protein produced by the liver). Together these markers give a comprehensive picture of liver health.
Fasting is not usually required for a standard liver function test. However, if your doctor has requested additional tests such as a lipid panel alongside the LFT, fasting may be needed. Your phlebotomist will confirm preparation requirements when you book.
Many things can cause elevated liver enzymes, including alcohol consumption, fatty liver disease, viral hepatitis, medications (including paracetamol and statins), obesity, and autoimmune conditions. A single abnormal result does not necessarily indicate serious liver disease — your doctor will interpret the results in context.
If you take medications that can affect the liver (such as statins or methotrexate), your doctor will typically recommend testing every 3-12 months. For general health screening, an annual check is sensible, particularly if you drink alcohol regularly or have risk factors for liver disease.
Yes. The venous blood sample collected at home is processed in the same accredited laboratory using the same equipment as hospital samples. The results are clinically identical.
Find a DBS-checked phlebotomist near you. Most bookings confirmed in under two minutes.
Find a Phlebotomist →Related reading: Liver Function Tests Explained