Antithrombin

What is being analysed here?

Antithrombin is being analysed here. It is a protein produced by the liver, necessary for proper blood coagulation. The antithrombin test measures its activity (function) and quantity (antigen) in the blood. It evaluates whether there is a tendency to excessive clotting.

What does the result mean?

Low antithrombin levels may increase the risk of clotting. High levels may be due to certain conditions or the use of anabolic steroids.

Why is this analysis performed?

It is performed to study the cause of inadequate clot formation and to diagnose antithrombin deficiencies.

When should this analysis be carried out?

After a thrombotic episode or when there is inadequate response to anticoagulant treatment with heparin.

What sample is required?

A sample of venous blood is taken from the arm.

Is any special preparation required?

No special preparation is needed.

Why is antithrombin so important?

Antithrombin regulates coagulation by inhibiting activated factors. Deficiency increases the risk of deep vein thrombosis.