FROM £72.50 · HARLEY STREET

Liver Function Test (LFT) London

Liver Function Blood Test at 117a Harley Street, London, from £72.50, with results in 1 working day. A Liver Function Test measures enzymes and proteins that can indicate liver-cell stress, bile-flow problems or changes in how the liver makes proteins such as albumin. Laboratory testing starts from £72.50.

General Medical Council registered doctors

Est. 1984

Care Quality Commission

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A Liver Function Test measures enzymes and proteins that can indicate liver-cell stress, bile-flow problems or changes in how the liver makes proteins such as albumin.

Test price From £72.50
Turnaround Usually 1 working day
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Blood test profile

Liver Function Tests

£72.50+ £50 phlebotomy

Usually 1 working day

Secure laboratory report

£150 GP consultation available

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Liver function · £72.50

What does a liver blood test check?

"Liver function test" is a conventional panel name. Several measurements in the panel reflect liver injury or bile-flow changes rather than function directly. LFTs measure ALT, AST, alkaline phosphatase, Gamma GT, bilirubin and proteins including albumin. Together they help assess liver-cell stress, bile flow and how the liver makes proteins such as albumin, though interpretation uses the whole panel and medical history.

Abnormal liver tests require clinical interpretation and may lead to further investigation. They do not identify a specific cause on their own.

Test option

Liver Function Tests (LFT)

Liver Function Tests

LFT · £72.50

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Analytes: Bilirubin (Total); ALT (Alanine Aminotransferase) (SGPT); Aspartate Transaminase (AST) (SGOT); Total Protein; Alkaline Phosphatase; Albumin; Globulin; Gamma GT

Turnaround: Usually 1 working day

  • •ALT and AST: enzymes that can rise with liver-cell stress
  • •ALP and Gamma GT: markers relevant to bile ducts and some liver conditions
  • •Bilirubin: pigment linked to jaundice and bile flow
  • •Albumin, globulin and total protein: albumin reflects how the liver makes certain proteins; globulins are a mixed group of blood proteins and are interpreted with the rest of the panel

A standalone Gamma GT test is available when only GGT has been requested after clinical advice.

Doctor-led testing

Have a doctor review your liver result

Liver enzymes rise for many reasons, including alcohol, fatty liver, medicines, viral infection and recent hard exercise. A private GP reads the pattern across the panel, asks about medicines and alcohol, and decides whether a repeat test, a hepatitis screen or a scan is the next step.

A normal panel does not rule out every liver condition, so tell the doctor about any symptoms.

  • •Book a GP consultation first if you are unsure whether you need the full liver panel or Gamma GT alone
  • •The report is usually ready within 1 working day
  • •Book a follow-up consultation to go through the result and agree the next step

GP Consultation

£150

Book GP Consultation

Discuss medicines, alcohol and symptoms such as tiredness, itching or abdominal discomfort, and agree which tests to request.

Follow-Up Consultation

£100

Book Follow-Up Consultation

For existing patients: go through your result with a doctor and agree the next step.

Only need the laboratory test? Our sister clinic lists liver function tests at Blood London.

Who may benefit

Medicines, previous results and liver-risk concerns

  • •Monitoring medicines that can affect the liver
  • •Previous abnormal liver results
  • •Alcohol or metabolic liver-risk concerns
  • •Symptoms a clinician wants to assess with a liver panel
Preparation and timing

What can affect a liver panel

No routine fast is required. Mention medicines, supplements, alcohol intake and recent strenuous exercise when you book.

Sampling on Harley Street usually takes 10 to 15 minutes, and the report is usually ready within 1 working day.

Understanding your result

What a liver panel can and cannot name

  • •Abnormal liver tests do not identify a diagnosis on their own.
  • •Normal blood results do not exclude every liver condition.

Usually 1 working day. Your laboratory report is supplied securely.

The blood-test price covers the laboratory report, not a consultation. A separate GP consultation is £150 if you want a doctor to interpret the result with your symptoms and history.

Urgent care is the safer first step when there is yellowing of the eyes or skin with confusion, severe abdominal pain, or vomiting blood.

A standalone Gamma GT is useful only when a clinician has specified that narrower test.

Source: British Liver Trust liver blood tests.

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Sources & References

  1. Liver blood tests require clinical interpretation and may lead to further investigation. - British Liver Trust liver blood tests[Link]
Clinical lead
Dr Penny Sheehan

Dr Penny Sheehan

Health Screening, Paediatrics and Menopause • GMC 6056535

“Dr Sheehan works in women's health, menopause care and health screening. She has training and experience in weight management, including GLP-1 receptor agonist prescribing, and a special interest in paediatric assessment.”

Service information reviewed 26 August 2026.

Verified Patient Feedback

What our patients say

“Quick, painless draw and 4-hour results”

“Had an appointment at 1:30 PM but got there early and the staff were happy to draw my blood earlier since there was availability. Quick and painless process with a professional phlebotomist. The turnaround time stated on the website for the test was 4 hours, and sure enough, I received my results super easy with no issues. Would recommend this service.”

Verified Patient · Mar 2025Same-Day Blood Test
Google Review

“Heard, understood and reassured”

“The clinic is warm and welcoming. In my experience, every time I was there, I found myself heard and understood. My health issues have been tackled in the best of ways. Miss Arjeta is absolutely a master of blood tests, you will not feel anything. Dr Bakhtiar is knowledgeable and calm, I always feel reassured after speaking to him. I genuinely recommend this clinic.”

Verified Patient · Jan 2026Private GP & Blood Testing
Google Review

“Results faster than expected at a walk-in clinic”

“I recently had a blood test for rabbit allergies at Medical Express Clinic, and I'm extremely pleased with the service. Not only did I receive my results faster than expected, but the receptionist was fabulous, she answered all my questions and accommodated all my requests. It's the only walk-in clinic I found in central London with reasonable prices. Highly recommend this clinic!”

Alessandro P.Walk-In Allergy & Blood Test
Trustpilot Review
FAQs

Common questions

Do I need to fast?

A routine fast is not required. Mention medicines, supplements, alcohol and recent strenuous exercise when you book.

Should I book Gamma GT instead?

The liver function panel already includes GGT, together with ALT, AST, bilirubin and proteins. A standalone GGT is for when that single enzyme is all that has been requested.

Can a doctor go through my result with me?

A private GP consultation is £150, and a follow-up consultation for existing patients is £100. The doctor reviews the result alongside your symptoms and agrees the next step.

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