Symptoms & Signs
Patients will usually have symptoms of a blood clot, including:
- Coughing up blood
- Fainting
- Shortness of breath and pain when taking deep breaths
- Swelling of one leg
Diagnosis & Tests
A physical examination may show:
- A fast heart rate
- A swollen foot or ankle
The diagnosis is made by checking for low levels of antithrombin III in the patient’s blood.
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Congenital antithrombin III deficiency : Overview, Causes, & Risk Factors
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Congenital antithrombin III deficiency : Symptoms & Signs, Diagnosis & Tests
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Congenital antithrombin III deficiency : Treatment
Review Date : 3/2/2009
Reviewed By : David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.
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A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.