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PT and INR
Also known as: Prothrombin Time, Pro Time
Formal name: Prothrombin Time, International Normalized Ratio
Related tests: Activated Clotting Time (ACT), Activated Partial
Thromboplastin Time (aPTT or PTT), Prothrombin Consumption Time (PCT),
Fibrinogen, Coagulation Factors
Why get tested?
To check how well blood-thinning medications (anti-coagulants) are working
to prevent blood clots; to help detect and diagnose a bleeding disorder.
When to get tested?
If you are taking an anti-coagulant drug or if your doctor suspects that you
may have a bleeding disorder.
Sample required?
A blood sample drawn from a vein in the arm; sometimes blood from
fingerstick.
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