
PT INR Blood Test in London
The INR (International Normalised Ratio) blood test measures how long it takes for your blood to clot. It’s essential for people on anticoagulant medications like warfarin, helping monitor and adjust treatment to prevent blood clots or bleeding. This test ensures your blood’s clotting rate stays within a safe range, supporting effective care and better health management.
At MD.co.uk, with a network of private clinics across London, we ensure convenient access to quick and efficient PT INR blood testing services. Whether you require a PT INR blood test for regular monitoring blood test for INR levels, our professionals deliver reliable results with same-day reporting. We make your INR blood check quick, reliable, and convenient.
You will need to arrange a GP appointment online with our partner clinics for any type of test. Book an appointment today!
When is the Right Time for an INR Blood Test?
If you experience prolonged bleeding, abnormal bruising, or are taking blood-thinning medications, it is the right time to have an INR blood test in London.

What Are the Essential Components of an INR Blood Test?
The INR blood test measures the following components:
- Prothrombin Time (PT) – This measures the time taken for blood to clot. Normally, it should take 11-13.5 seconds. A longer than normal time may indicate the effectiveness of anticoagulants or a bleeding disorder.
- International Normalised Ratio (INR) – This standardises PT results across various labs. It should range from 0.8 to 1.1 for those not taking anticoagulants. For patients on anticoagulant therapy, the standard range is 2.0-3.0, ensuring the correct dosage of medication.
How Our PT INR Blood Test Works
- Book Your Appointment – Schedule online or via phone.
- Consultation – Discuss your medical history with a specialist.
- Sample Collection – Quick and painless blood sample taken by experts.
- Lab Testing – Accurate results using advanced technology.
- Receive Results – Same-day results delivered via email or secure portal.
- Follow-Up – Expert advice on your test results and treatment options.

Why Choose MD.co.uk for a PT INR Blood Test in London?
- Partnered with leading private healthcare clinics in London
- Collaboration with UKAS-accredited laboratories
- Rapid, direct, and discreet access to GP services
- Same-day appointment slots
- Open 7 days a week
- Affordable cost
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