Lupus Anticoagulant Test
£98.75
- Results: 2 working days
- Laboratory report; GP consultation £150 extra
- Walk-in available 7 days
UKAS LAB · HARLEY STREET
Lupus Anticoagulant Test
Recurrent miscarriage. Unexplained blood clots. A clotting test that came back "prolonged" without explanation. Lupus anticoagulant antibodies may be the missing piece.
Results2 working days
Time20-30m
Price£98.75
AvailabilityWalk-in available 7 days
Est. 1984
Trusted clinical caresince 1984
UKAS-accredited labsGP & consultant pathways
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Lupus anticoagulant test in London
The lupus anticoagulant test at Medical Express Clinic is a blood test that detects antibodies which interfere with normal blood clotting.
Despite its name, the lupus anticoagulant test is not specifically for lupus, and it identifies a clotting abnormality linked to a higher risk of blood clots, stroke and pregnancy complications.
Lupus anticoagulant is one of the antiphospholipid antibodies, which make blood more likely to clot inappropriately in veins and arteries, and it is particularly significant during pregnancy, where it can contribute to recurrent miscarriage or placental problems.
The lupus anticoagulant test is commonly requested after recurrent miscarriage, unexplained blood clots, a prolonged aPTT on routine blood tests, or as part of an assessment for antiphospholipid syndrome (APS).
The lupus anticoagulant test costs £98.75, with a GP consultation £150 extra, and results take 2 working days.
A positive lupus anticoagulant result usually needs a repeat test 12 weeks later to confirm it.
The lupus anticoagulant test can be booked online or arranged on a walk-in basis 7 days a week at 117a Harley Street, London.
How much does a lupus anticoagulant test cost in London?
A lupus anticoagulant test costs £98.75 at Medical Express Clinic, with results in 2 working days; a GP consultation is £150 extra.
This test is commonly requested for:
- • Recurrent miscarriage (two or more pregnancy losses)
- • Unexplained blood clots, especially at a young age
- • Stroke or TIA without obvious cause
- • Prolonged aPTT on routine blood tests
- • Assessment for antiphospholipid syndrome (APS)
A positive result usually requires confirmation with a repeat test 12 weeks later, as transient positives can occur after infections.
More comprehensive option:
For a fuller assessment, the Hughes Syndrome profile (£151.25) includes lupus anticoagulant plus anticardiolipin antibodies, covering more of the antiphospholipid antibody spectrum.
Book Hughes Syndrome Test →Book your Lupus Anticoagulant Test - results in 2 days
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Related:
Hughes Syndrome Test
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Clinical lead
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.
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FAQs
Lupus anticoagulant test FAQs
Why is it called "anticoagulant" if it causes clots?
Confusingly, lupus anticoagulant prolongs clotting times in the test tube but causes excessive clotting in the body. The name refers to the lab finding, not the clinical effect.
I've had one miscarriage. Should I test?
Testing is typically recommended after two or more losses, but your doctor may suggest it earlier depending on other factors.
Why might a positive lupus anticoagulant result need confirmation?
A positive result usually requires confirmation with a repeat test 12 weeks later, as transient positives can occur after infections.
