Testing for factor X deficiency
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Factor X News
A healthcare provider may suspect a bleeding disorder like factor X deficiency based on:
- A personal history of bleeding symptoms
- A family history of a bleeding disorder
When factor X deficiency is suspected, the diagnosis is made through blood tests that measure the time it takes for blood to clot. These include1,2:
- Prothrombin time (PT)
- Partial thromboplastin time (PTT)
- Thrombin time
A blood test called a factor X assay may be used to confirm the diagnosis.1 This is a factor X-specific test that measures the activity of factor X in the blood.3
- National Hemophilia Foundation. Factor X. https://www.hemophilia.org/Bleeding-Disorders/Types-of-Bleeding-Disorders/Other-Factor-Deficiencies/Factor-X. Accessed January 6, 2015.
- MedlinePlus Medical Encyclopedia. Factor X deficiency. http://www.nlm.nih.gov/medlineplus/ency/article/000553.htm. Accessed January 6, 2015.
- MedlinePlus Medical Encyclopedia. Factor X assay. http://www.nlm.nih.gov/medlineplus/ency/article/003680.htm. Accessed January 6, 2015.