APTT Testing (APTT)
The APTT test is also known as a Activated partial thromboplastin time test.
All you need to know about testing APTT levels with a laboratory test
Conditions linked to APTT
How To Test APTT
By buying a laboratory test kit with professional nurse or clinic collection, you can accurately measure APTT for total reassurance.
Professional analysis in an accredited laboratory ensures rapid result delivery.
Tests which include a APTT test:
What if APTT Results Are High?
Prolonged APTT means the activated partial thromboplastin time is longer than expected, suggesting slower clot formation through this pathway.
It is commonly associated with problems affecting clotting factors involved in the intrinsic and common pathways, and it can also be seen in people using anticoagulant medicines.
What if APTT Results Are Low?
Shortened APTT is uncommon and may reflect variation in laboratory measurement.
Why Take The APTT Test?
This test helps investigate bleeding or clotting disorders and is used to monitor some anticoagulant treatments. It supports the diagnosis of conditions affecting clotting factor levels.
Who Should Take This Test?
Measure your APTT levels and with a nurse or clinic test kit
You get the convenient testing with the reassurance of professional clinical analysis. Your results are delivered quickly & securely online.
This Test is advised if you:
- want the convenience of home testing without waiting for a GP appointment;
- need a high quality, clinically accredited test done in a professional clinical laboratory.
Medical review
Dr. Shahzaib Ahmad MBBS, BSc, MRCP, FRCA, FFICM
Clinical Supervisor - Vitall|GMC 7495062|Profile
Dr Shahzaib Ahmad is a Consultant in Intensive Care Medicine with subspecialty experience in cardiac critical care and neurocritical care. He has extensive experience managing complex acute and cardiovascular conditions in hospital intensive care settings. Dr Ahmad supports Vitall in reviewing health content for clinical accuracy and alignment with current medical practice.
Reviewed on 03/02/2026
Next review due 03/02/2027
Review focus: Blood biomarkers, laboratory testing methodology, and biochemical interpretation.
This content has been reviewed for medical and scientific accuracy but does not replace advice from a qualified healthcare professional.
