Offers
Lab Test

Anti-Thrombin III Antigen Test

Anti-Thrombin III, also known as AT III, is a protein in the blood that plays a crucial role in the regulation of blood clotting. It inhibits thrombin and other enzymes involved in the coagulation process, which helps prevent the formation of excessive blood clots. The Anti-Thrombin III Antigen test measures the amount of anti-thrombin protein present in your blood.


  • Profile Name: Anti-Thrombin III Antigen Test
  • Sample Type: Blood
  • Preparations Required: No special preparation is required. However, it is important to inform the doctor about any medications or supplements being taken, as they might interfere with the test results.
  • Report Time: 4 days

This test is particularly important for individuals who have a history of blood clots or are at risk for clotting disorders. It can help in the diagnosis of hereditary anti-thrombin deficiency, which is a disorder that can increase the risk of developing abnormal blood clots. Understanding and monitoring AT III antigen levels are vital for the management and treatment of blood clotting disorders.

Home Sample Collection Process
1
Book your convenient slot
Book your convenient slot
2
Sample Collection by Phlebotomist
Sample Collection by Phlebotomist
3
Reporting of the sample at lab
Reporting of the sample at lab
4
Download Reports
Download Reports
Frequently Asked Questions

The Anti-Thrombin III Antigen test measures the amount of anti-thrombin protein in the blood. This protein is crucial in preventing excessive blood clotting.

A healthcare professional will take a blood sample from a vein in your arm. The sample is then sent to a laboratory where the amount of anti-thrombin protein is measured.

A doctor might order this test if there is a family history of clotting disorders, unexplained blood clotting, recurrent miscarriages, or if there is a need to monitor the effectiveness of anticoagulant therapy.

Low levels of Anti-Thrombin III antigen may indicate an inherited deficiency or an acquired condition that reduces the protein's levels. This can increase the risk of blood clots.

High levels are less common but might be associated with a lower risk of clotting. This can be due to various factors including certain medications or liver dysfunction.

Normal ranges can vary, but generally, AT III antigen levels between 20 to 30 mg/dL are considered normal.

No special preparation is needed for the test, but you should inform the doctor about any medications or supplements you are taking.

The frequency of this test depends on your health status and history. Your doctor will recommend how often you should have this test based on your specific situation.

The risks associated with this blood test are minimal and include slight pain or bruising at the site where the needle was inserted.

Yes, certain medications such as heparin, oral anticoagulants, and hormone replacement therapy can affect the results of this test. Inform your doctor of any medications you are taking.

The Anti-Thrombin III antigen test measures the amount of the protein in the blood, whereas the Anti-Thrombin III activity test measures how well the protein is functioning.

Modifiable factors include medication use, diet, and lifestyle. For instance, dietary changes can affect clotting factors, and lifestyle changes like exercise can affect coagulation.

Non-modifiable factors include genetics and certain medical conditions that affect the liver or kidneys.

If your Anti-Thrombin III antigen levels are abnormal, it is advisable to consult a hematologist or your primary care doctor for further evaluation and guidance.

Yes, Anti-Thrombin III levels can change during pregnancy. If you are pregnant and have a history of clotting disorders, your doctor may monitor your Anti-Thrombin III levels closely.

Understanding your Anti-Thrombin III antigen levels is critical in managing your health, especially if you are at risk for clotting disorders. Regular monitoring and adherence to your doctor’s advice are vital. This test is a valuable tool that provides necessary information for the diagnosis and management of blood clotting disorders.

Book Your Slot
Locations Near You in Hyderabad
  • 4KM from Madhapur
  • 3KM from Banjara Hills
  • 1.9KM from Yusufguda
  • 3KM from Madhura Nagar
  • 5KM from Shaikpet