Can a high INR level cause confusion?

Yes, a high INR (International Normalized Ratio) level can lead to confusion, primarily due to an increased risk of bleeding in the brain or other areas. When INR levels are elevated, it indicates that blood is taking longer to clot, which can result in serious complications such as hemorrhagic stroke. Additionally, the effects of anticoagulant medications used to manage INR levels may also contribute to cognitive changes. It's essential for individuals with high INR levels to be monitored closely for any neurological symptoms.