Why is PT high

Why is PT high

PT is an acronym for Prothrombin Time. It refers to the kind of blood test that is performed to determine the clotting ability of the plasma within the blood. It is sometimes called as pro-time”.

The test is normally done by a medical expert using a needle to extract blood from the patient. The collected blood is directly placed in an airtight container and sent to the lab for testing. A laboratory expert will then add a specialized chemical to the blood sample and wait for the blood to clot.

The normal value of prothrombin time usually takes around 11 to 16 seconds. However in other laboratories the normal range value might have a slight variation, from 11 to 13.5 seconds instead of 16, so it is much better to discuss the result with the doctor. Also, it should be considered that people who take blood thinners before the test will most likely have a longer PT results.

Now, what does it mean if the PT result is high or prolonged? This only mean that the blood’s clotting ability is not properly working. The abnormality in the PT result is interpreted by the doctors and traces its source which may be due to a list of diseases, deficiencies, and even medications.

A high PT might be brought about by an obstruction in the bile duct, cirrhosis, disseminated intravascular coagulation (or DIC), hepatitis, early stage of liver disease, end-stage of liver disease, congenital afibrinogenemia, malabsorption, Vitamin K deficiency, Warfarin therapy (or Coumadin and other anticoagulant drugs), Factor I (fibrinogen) deficiency, Factor II (Thrombin) deficiency, Factor V (labile or proaccelerin factor) deficiency, Factor VII (formerly identified as proconvertin) deficiency, and Factor X  (known by its eponym Stuart-Power Factor or prothrombinase) deficiency as seen in amyloid purpura (or a condition of bleeding under the skin).

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