What is the normal INR range for a healthy individual?

The normal INR (International Normalized Ratio) range for a healthy individual typically falls within the range of 0.8 to 1.1. This measurement is used to evaluate the blood's ability to clot and is a key parameter in monitoring anticoagulation therapy, as well as assessing clotting function in patients who may be at risk for thromboembolic events.

For a healthy individual not on anticoagulant therapy, an INR of 1 indicates normal coagulation status, while values outside this range may indicate a tendency toward either excessive bleeding or clotting. It's critical to understand this range in the context of different medical treatments; for example, patients on anticoagulants like warfarin usually have a target INR that is higher and dependent on their specific medical conditions, such as atrial fibrillation or the presence of mechanical heart valves.

This response clarifies why the chosen option accurately reflects the normal INR range in a healthy population.