ANTITHROMBIN III
What does ANTITHROMBIN III measure?
This test measures antithrombin III, a natural blood protein that helps control clot formation by limiting the activity of certain clotting factors. It may be used to evaluate reduced antithrombin activity or levels in people with unusual, recurrent, or unexplained blood clots, or when an inherited or acquired clotting tendency is being considered. Results are interpreted alongside medical history, medications, and other coagulation tests.
This overview is educational. Use the recorded preparation, sample and lab-partner details below for collection guidance, and confirm any missing information before collection.
Compare eligible lab partners
Prices, report times and availability are shown from the catalog records for each eligible partner.
- Sample for analysis
- Confirm with the collection team
- Report time
- To be confirmed
Preparation and specimen requirements can vary by test and laboratory. Follow the instructions shown for your selected partner and any advice from your healthcare professional.