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Coagulation Screen
79.00
This test evaluates how well your blood clots and helps detect potential bleeding or clotting disorders. It is commonly used before surgery or when unexplained bruising or bleeding occurs.
Turnaround time
2-3 days
Biomarkers count
4
Same-Day Appointments
UKAS Accredited Labs
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Under 18? Patients under 18 can only be seen at GB Medlabs and Clinilabs, Monday to Friday only.
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Details about Coagulation Screen
A healthy clotting system is essential for preventing excessive bleeding, bruising, or dangerous blood clots. If your body forms clots too slowly or too quickly, it can signal underlying medical issues—including vitamin deficiencies, liver disease, clotting disorders, or side effects of medication.
The Coagulation Screen is a crucial test for anyone experiencing unexplained bruising, heavy bleeding, clotting concerns, or preparing for surgery. It evaluates the core pathways involved in blood clot formation and helps doctors assess your bleeding risk quickly and accurately.
What’s Tested?
This profile includes coagulation biomarkers that assess clotting speed, clot stability, and overall haemostatic function.
Coagulation Screen Biomarkers
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International Normalised Ratio (INR): Measures how quickly your blood clots and is essential for monitoring blood-thinning treatments such as warfarin.
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Partial Thromboplastin Time (PTT / aPTT): Evaluates the intrinsic clotting pathway, helping identify clotting factor deficiencies and bleeding disorders.
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Fibrinogen: A critical protein needed to form stable blood clots. Abnormal levels may indicate inflammation, liver disease, or clotting abnormalities.
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Prothrombin Time (PT): Assesses the extrinsic clotting pathway and helps detect clotting factor deficiencies, liver dysfunction, and vitamin K abnormalities.
Why Choose the Coagulation Screen?
Essential for pre-surgery assessment
Helps diagnose bleeding disorders and clotting abnormalities
Useful for patients on long-term anticoagulant medication
Detects early signs of liver issues or vitamin K deficiencies
Fast, accurate, laboratory-verified results
How It Works
Simple steps to get your results
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Book Online
Choose your test online and book in seconds. Select your preferred clinic location or home visit option.
2
Visit or Test at Home
Attend one of our UK or London clinics, arrange a home nurse visit, or use a finger-prick kit where available.
3
Get Your Results
Your sample is analysed by accredited UK laboratories, with secure results delivered directly to you.
Take control of your health with London Blood Tests
WhatsApp UsHow to Prepare for Your Test
Follow these guidelines for accurate results
Sample Timing
Where possible, attend your blood test between 7am and 12pm. Please wait until any short-term illness or infection has fully resolved before testing. Avoid intense exercise for 24–48 hours beforehand, as this can affect certain markers.
Fasting & Hydration
Fasting is not always required, but some tests may recommend it. If fasting is advised, avoid food for 8–12 hours before your appointment and drink water only. Stay well hydrated, as this helps with sample collection and accuracy.
Medications & Supplements
Continue prescribed medications unless advised otherwise by your clinician. Avoid vitamin, mineral, or biotin supplements for at least 24–48 hours before your test, as these can interfere with results. If you are unsure about any medication or supplement, please let us know before your appointment.
Hormones & Menstrual Cycle
For hormone-related tests, timing within your menstrual cycle may be important. If relevant, follow any specific guidance provided on your test page.
If you have any questions or special circumstances, our team is happy to advise before your appointment.
Frequently Asked Questions
It assesses how well your blood clots.
No fasting is required.
Yes, especially anticoagulants and some antibiotics.
Yes, it is commonly part of pre-operative checks.
It helps identify abnormalities that may require further testing.
Yes, when clinically indicated.
Yes. At-home phlebotomy is available across the UK.
Performed in UKAS-accredited laboratories using standardised methods.
Typically 1–2 business days.
A GP consultation is optional, but recommended if results are abnormal.
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