Antithrombin III

• A
• B
• C
• D
• E
• F
• G
• H
• I
• J
• K
• L
• M
• N
• O
• P
• Q
• R
• S
• T
• U
• V
• W
• X

A-Th3; AT III

The normal range is 0.20 - 0.45 mg/ml (milligrams per milliliter).

Lower-than-normal AT III may mean you have an increased risk of clotting. Examples of disorders and conditions associated with increased blood clotting include:

• Deep venous thrombosis
• Pulmonary embolus (blood clot traveling to lung)
• Phlebitis (vein inflammation)

Lower-than-normal AT III may be due to:

• DIC (disseminated intravascular coagulation)
• Other coagulation disorders
• Liver disorders
• Nephrotic syndrome

Higher-than-normal AT III may be due to:

• Use of anabolic steroids

Review Date: 03/09/2007
Reviewed By: Mark Levin, MD, Hematologist and Oncologist, Newark, NJ. Review provided by VeriMed Healthcare Network.