RisksBy Mayo Clinic staff
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.
- PT and INR. Lab Tests Online. http://www.labtestsonline.org/understanding/analytes/pt/glance.html#. Accessed Oct. 3, 2012.
- Prothrombin time. Mayo Medical Laboratories. http://www.mayomedicallaboratories.com/test-catalog/Clinical+and+Interpretive/9236. Accessed Oct. 3, 2012.
- 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.
- 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.