Prothrombin Ratio (INR)

The International Normalized Ratio (INR) is a measure how long it takes for blood to clot. The INR is particularly important for people taking anticoagulant medications, like warfarin, because it helps ensure that the dose of the medication is safe and effective.

The INR test compares your blood's clotting time to a standard reference. A typical INR value for someone not on anticoagulant therapy is around 1.0, but for those on such medication, the target range usually varies between 2.0 and 3.0, depending on the condition being treated.

Sample type: Blood

Turn around time: 1 day

More info: https://healthify.nz/health-a-z/p/prothrombin-time-pt-test-inr/