Prothrombin time test

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Risks

By Mayo Clinic staff

Digestive Health

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A prothrombin time test is safe. Because the test involves drawing blood from a vein in your arm, you may experience soreness or bruising at the site from which your blood is drawn.

What you can expect Why it's done
References
  1. PT and INR. Lab Tests Online. http://www.labtestsonline.org/understanding/analytes/pt/glance.html#. Accessed Oct. 3, 2012.
  2. Prothrombin time. Mayo Medical Laboratories. http://www.mayomedicallaboratories.com/test-catalog/Clinical+and+Interpretive/9236. Accessed Oct. 3, 2012.
  3. Feldman M, et al. Sleisenger & Fordtran's Gastrointestinal and Liver Disease: Pathophysiology, Diagnosis, Management. 9th ed. Philadelphia, Pa.: Saunders Elsevier; 2010. http://www.mdconsult.com/books/about.do?eid=4-u1.0-B978-1-4160-6189-2..X0001-7--TOP&isbn=978-1-4160-6189-2&about=true&uniqId=229935664-2192. Accessed Oct. 3, 2012.
  4. Friedman LS. Tests of the liver's biosynthetic capacity (e.g., albumin, coagulation factors, prothrombin time). http://www.uptodate.com/index. Accessed Oct. 3, 2012.
MY00150 Nov. 14, 2012

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