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Protein S LIS Code: Protein S

Measure Protein S levels with a private blood test for coagulation and thrombosis risk.

→ 5 days → UKAS-accredited lab → No GP referral needed
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Test Price
£62
Results in
5 days
from sample receipt at lab
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Sample
Blood
£62
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⏱ Results in 5 days · LIS: Protein S
ℹ️ TAT begins when your sample is received at our lab.
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Phlebotomy Fee: £25
A one-off £25 phlebotomy fee applies per visit — this covers your blood draw regardless of how many tests you book in the same appointment.

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About this test

What is Protein S?
Protein S is a vitamin K-dependent protein that plays a critical role in the regulation of blood clotting. It functions as a natural anticoagulant in the body.

Role in Coagulation Control
Protein S enhances the activity of Activated Protein C (APC), which inactivates clotting factors Va and VIIIa. This action helps to prevent excessive clot formation and supports balanced blood flow.

Clinical Importance of Protein S
Deficiency or dysfunction of Protein S can lead to an increased risk of abnormal blood clotting, such as deep vein thrombosis or pulmonary embolism, and is often evaluated in patients with unexplained thrombotic events.

Private Protein S Testing in Slough and Surrounding Areas
Comprehensive coagulation testing, including Protein S levels, is available in Slough, Windsor, Maidenhead, and nearby Berkshire areas. This test is essential for assessing clotting risk and managing inherited or acquired thrombophilia.

Our Professional Services Our diagnostic testing is carried out by Medical Diagnosis, a UKAS ISO 15189 accredited laboratory, ensuring all results meet the highest UK standards of quality and accuracy. Clinical consultations and treatments, including Testosterone Replacement Therapy (TRT) and Weight Management programmes, are delivered through Medical Diagnosis Victoria, which is registered with the Care Quality Commission (CQC). All clinical services are provided by GMC-registered doctors with extensive experience, following thorough medical assessment in line with UK regulatory standards.
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