Tumour Marker Blood Tests London
Medical Express Clinic offers selected tumour-marker tests, including CA-125, CA 15-3, CA 19-9, AFP, PSA profiles and HE4/ROMA. The correct marker depends on the clinical question. Laboratory testing starts from £75.
Est. 1984
Trusted clinical caresince 1984
UKAS-accredited labsGP & consultant pathways
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Medical Express Clinic offers selected tumour-marker tests, including CA-125, CA 15-3, CA 19-9, AFP, PSA profiles and HE4/ROMA. The correct marker depends on the clinical question.
Tumour markers are not general cancer screening tests. They cannot diagnose or exclude cancer on their own, and a false result can lead to unnecessary investigation. Persistent unexplained weight loss, a new lump, or blood in stool or urine needs prompt clinical assessment; severe or acute symptoms need emergency care.
Or call 0207 499 1991.
Compare the tests in this service
Select a profile to see every included analyte before you book.
When a tumour marker test is appropriate
The useful test is the marker a clinician has already named. If you want cancer assessment without a specified marker, speak to the clinic or consider cancer screening or a clinical review, rather than choosing a marker yourself.
What is included
Turnaround is test-specific and confirmed when booking; several common markers usually return in 1 working day.
Each option measures a selected tumour-associated marker or profile. PSA profiles report total and free PSA. The HE4 and ROMA profile combines HE4, CA-125 and a calculated ROMA score. Markers can support assessment or monitoring in selected situations but are not definitive alone.
For prostate-specific concerns, see also prostate health.
CA-125
C125 · £75
Analytes: CA-125
Turnaround: Test-specific and confirmed when booking; several common markers usually return in 1 working day
Most useful when your clinician has asked for CA-125
CA 15-3
C153 · £75
Analytes: CA 15-3
Turnaround: Test-specific and confirmed when booking; several common markers usually return in 1 working day
Most useful when your clinician has asked for CA 15-3
CA 19-9
C199 · £75
Analytes: CA 19-9
Turnaround: Test-specific and confirmed when booking; several common markers usually return in 1 working day
Most useful when your clinician has asked for CA 19-9
Alpha-Fetoprotein (AFP)
AFP · £78.13
Analytes: Alpha-Fetoprotein
Turnaround: Test-specific and confirmed when booking; several common markers usually return in 1 working day
Most useful when your clinician has asked for AFP
Prostate Profile (Total and Free PSA)
PR2 · £92.50
Analytes: Total PSA; Free PSA
Turnaround: Test-specific and confirmed when booking; several common markers usually return in 1 working day
Most useful when total and free PSA monitoring is clinically appropriate
HE4 and ROMA
HE4 · £106.25
Analytes: HE4; CA-125; ROMA score
Turnaround: Test-specific and confirmed when booking; several common markers usually return in 1 working day
Most useful when your clinician has asked for HE4 and ROMA
See a doctor before you choose a tumour marker
Tumour markers are not cancer screening tests. Levels rise in many harmless conditions and can be normal when cancer is present. A private GP takes your symptoms and family history first, says which marker, if any, is worth measuring, and arranges a scan or a specialist referral when the picture calls for it.
If a clinician has already named the marker you need, you can book the test on its own.
- •Book a GP consultation first unless a clinician has already named the marker you need
- •Several common markers usually return within 1 working day; the time is confirmed when you book
- •Book a follow-up consultation to go through the result and agree the next step
GP Consultation
£150
Discuss your symptoms and family history, and agree which marker or other investigation fits the question.
Follow-Up Consultation
£100
For existing patients: go through your result with a doctor and agree the next step.
Only need the laboratory test? Our sister clinic lists cancer marker blood tests at Blood London.
Clinician-named markers and monitoring
- •Clinician-directed investigation
- •Monitoring an established condition or treatment
- •A specific marker named after clinical discussion
Marker-specific preparation
Preparation depends on the selected marker and the clinical question. Medicine, timing or activity instructions are confirmed when you book.
Sampling on Harley Street usually takes 10 to 15 minutes. Turnaround is test-specific and confirmed at booking; several common markers usually return in 1 working day.
What a marker result can and cannot show
- •Tumour markers are not general cancer screening tests and cannot diagnose or exclude cancer alone.
- •False-positive and false-negative results occur, so testing without a clear clinical question can cause unnecessary investigation.
Test-specific and confirmed when booking; several common markers usually return in 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.
Related tests and services
Find another blood test
Search over 1,000 markers and panels. Type to filter, or browse by category — same-day appointments on Harley Street.
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Packages & profiles
Commonly requested
- Full Blood Count (FBC)£63.75 · 1 working day
- Liver Function Tests£72.50 · 1 working day
- Thyroid Function TestFrom £100 · 1-2 working days
- Cholesterol & Lipid Profile£72.50 · 1 working day
- Anaemia & Iron Profile£126.25 · 1 working day
- HbA1c (Diabetes Screen)£71.25 · 1 working day
- Female Hormone & MenopauseFrom £147.50 · 1 working day
- Male Hormone & Testosterone£238.75 · 1 working day
- Insulin Resistance£111.88 · fasting required
- INR Testing£39.38 · 1 working day
Specialist & genetic
- Gamma GT£36.25 · 1 working day
- Lupus Anticoagulant£98.75 · Clotting disorder screen · 2 days
- Hughes Syndrome£151.25 · APS markers · Results in 2 days
- Sjögren's SyndromeSpecialist autoimmune panel · Walk-in available
- Stool Parasites (Microscopy + PCR)£159.38 · Combined stool panel · 2-3 days
- Heavy Metal Screen£407.50 · Toxic metals panel · 7-10 days
- EDS Genetic Panel£1,375 · NGS panel · Results in 6 weeks
- SMA Genetic Test£641.25 · Carrier screening · 10 days
Sources & References
- Tumour markers can support diagnosis or monitoring in selected situations but are not definitive alone. - Cancer Research UK blood and tumour-marker tests[Link]
Dr Mohammad Bakhtiar
Health Screening and Men's Health • GMC 4694470
MD, PhD, LRCP, MSc, DHMSA
“Dr Bakhtiar has worked at Medical Express Clinic for over 20 years and leads the clinical team. His work includes health assessments, sexual health screening, diagnosis and treatment.”
Service information reviewed 26 August 2026.
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.”
“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.”
“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!”
Common questions
Are tumour markers cancer screening tests?
They are not general screening tests and cannot diagnose or exclude cancer on their own.
Which marker should I book?
The correct marker depends on the clinical question. Choose the marker your clinician has named, or call the clinic on 0207 499 1991.
How quickly will I receive the result?
Timing is test-specific; several common markers usually return in 1 working day. The clinic confirms this when you book.
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.
