Private liver function blood test
A liver function panel covering liver enzymes (ALT, AST, ALP, GGT) and proteins (albumin, globulin, total protein) plus bilirubin. Available as part of our private health check packages at our Kingston and Crawley clinics, with no fasting required.
No GP referral needed — book directly online
What it checks
What does a liver function blood test check?
A liver function test (LFT) measures enzymes and proteins produced by the liver. Together, these markers help assess how well your liver is working and can flag patterns linked to liver stress, inflammation or reduced liver function.
Our liver panel includes 8 markers. The full panel is included in our Essential, Advanced and Optimal Health Checks. Cancer Marker checks include a shorter 6-marker liver panel.
- Total Protein
- Albumin
- Globulin
- Total Bilirubin
- Alkaline Phosphatase (ALP)
- ALT (Alanine Aminotransferase)
- AST (Aspartate Aminotransferase)
- Gamma GT (GGT)
Which packages include it
Liver function testing in our packages
Liver function testing is included in every one of our health check packages — the level of detail varies slightly between them.
Advanced
£155
Includes the full 8-marker liver function panel, plus full blood count and ECG.
Optimal
£189
Includes the full 8-marker liver function panel alongside thyroid function and inflammation markers.
Men’s Cancer Marker Check
£249
Includes a 6-marker liver panel alongside PSA prostate testing and FIT bowel screening.
Women’s Cancer Marker Check
£249
Includes a 6-marker liver panel alongside CA125 testing and FIT bowel screening.
Single blood tests start from £99, with some specialist tests priced higher. For better value, many patients choose a health check package instead, which includes a broader blood panel, on-the-day checks and a clearer picture of their results.
What results may indicate
Understanding liver function results
Liver markers are most meaningful when read together. Mildly raised individual markers are common and often have non-serious causes.
ALT and AST
ALT and AST are liver enzymes that can rise when liver cells are inflamed or damaged. Raised levels can flag patterns linked to fatty liver, alcohol intake, certain medications or other liver conditions.
ALP and GGT
ALP and GGT can indicate issues with bile flow or liver enzyme activity. Raised GGT in particular is sometimes linked to alcohol intake or certain medications, though it can be raised for many other reasons.
Bilirubin
Bilirubin is a waste product processed by the liver. Raised levels can flag patterns linked to liver function issues, gallbladder problems or red blood cell turnover.
Albumin and proteins
Albumin, globulin and total protein give a picture of the liver’s synthetic function — how well it’s producing essential proteins. Low levels can support assessment of chronic liver issues, kidney issues or nutritional status.
Liver function blood tests are for screening and risk awareness, not diagnosis. Mildly raised markers are common and often resolve on repeat testing. If results suggest medical follow-up — or if you have current symptoms — please speak to your GP.
How it works
How private blood testing works
- 1
Choose your package
Pick the blood test panel and health check level that suits your needs.
- 2
Book Kingston or Crawley
Choose your clinic and appointment time online.
- 3
Attend your appointment
Your Health Adviser takes your blood sample and completes your on-the-day checks.
- 4
Receive your report
Blood results are usually ready within 2–5 working days, with clear explanations and next-step guidance.
Where we test
Kingston and Crawley clinics
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Patients regularly mention feeling relaxed, reassured and clearly guided throughout their health check.
“Really nice guy. I felt very at ease and it was a smooth process. Joe gave me insight into my diet that I hadn't considered before which I found very helpful. Definitely recommend!”
“I had an excellent experience for my first appointment. Joe was welcoming and took the time to explain each step clearly, which made the appointment feel relaxed and reassuring. The overall level of care was outstanding.”
“Super happy with the health screening experience. Joe was welcoming, friendly and gave lots of great tips about my health. Highly recommend, I will definitely be back!!”
“Highly recommended. The whole process is simple and smooth. Joe was professional and friendly, who also gave some general health advice. Definitely worth it.”
“My practitioner was very professional and friendly. The health screening was conducted in the way it was described beforehand, and all the tests were completed as expected. I would recommend the service.”
“I recently had a health screening and was thoroughly impressed from start to finish. Joe immediately made me feel at ease. The entire appointment was extremely well organised and professional, yet never felt rushed. I couldn't recommend Optimum Health Screening highly enough.”
FAQ
Liver function blood test — frequently asked questions
Do I need a GP referral for a liver function blood test?
Do I need to fast before a liver function test?
What does a liver function blood test include?
How quickly will I get my liver results?
What if my liver results are raised?
Can I just book a liver function test on its own?
Related blood tests
Other health markers often checked alongside this test
Ready to book a liver function blood test?
Choose a health check package at our Kingston or Crawley clinics, with no GP referral needed and results in 2–5 working days.
Or call 020 8058 7765