Prothrombin Time with INR Test
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Must be 18+ years of age to purchase
Orders not permitted in: AK, HI, AZ
Blood (venipuncture - a needle is used to draw blood from a vein)
Our Prothrombin Time with INR (PT/INR) Test measures how long it takes for your blood to form a clot (coagulate). Anticoagulants (anti-clotting medications) change the way your blood clots. Warfarin is a commonly prescribed anticoagulant, or blood thinner, that prevents blood from clotting. Anticoagulant therapy must be carefully monitored to make sure the dosage is right for the patient; otherwise, severe and persistent bleeding or excessive blood clotting (hypercoagulation) can occur.
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Get your results online
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