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5. Diagnosis

Certain tests can determine whether blood clots are caused by factor V Leiden. If an APC resistance test is positive, a specific F5 test is often the next step. People with frequent clotting issues can undergo further tests to determine if they have additional mutations that will compound the likelihood of deep vein thrombosis. A simple coagulation screening test may be the initial step or the doctor may order one in conjunction with genetic testing. A person may carry one or two of the mutated F5 genes. While problematic risks are low with a single gene, they significantly increase when a double gene is present.

coagulation screening test, genetic testing poba / Getty Images

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.