Antithrombin III
Antithrombin III is a vital natural anticoagulant protein regulating and moderating the blood clotting cascade.
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.
80 – 120 %
80 – 120 %
80 – 120 %
What does a low result mean?
A modest dip is sometimes seen with oral estrogen contraceptives, pregnancy, or following recent surgery.
What does a high result mean?
An elevated level carries no negative health impact and demonstrates strong natural anticoagulant buffering.
Questions ready for your doctor
Bring these questions to your next consultation to discuss with your healthcare practitioner:
- Could contraceptive pills or hormone therapy be influencing this reading?
- Should we recheck to verify baseline stability?
- Is this level reassuring ahead of planned surgery?
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.