Prothrombin Time (PT)
Prothrombin time evaluates how rapidly the extrinsic coagulation pathway produces a blood clot.
Test your personal value
Enter the number from your lab report to instantly see how it compares to reference ranges.
Physiological Reference Ranges
The ranges below represent standard adult physiological values. Your laboratory's printed reference range always takes precedence.
70 – 100 %
70 – 100 %
70 – 100 %
What does a low result mean?
A modest drop is intentional when taking anticoagulant medications and can also occur with lower vitamin K intake.
What does a high result mean?
A value near or slightly above 100% demonstrates robust and healthy natural clotting potential.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Does this align with my current medication goals?
- Is my dietary vitamin K intake sufficient?
- When should we perform our next follow-up check?
Do you have a full blood test report?
Upload your lab document (PDF or image) to get an instant, clear explanation for every biomarker at once.
Important information — Medical notice
ScanMyLab is for informational purposes only. It does not provide a diagnosis and never replaces the advice of your doctor or laboratory.