INR.
International Normalized Ratio. A blood test that measures how long it takes blood to clot, used to monitor patients on warfarin. The target INR range depends on the indication — typically 2.0 to 3.0 for atrial fibrillation and 2.5 to 3.5 for mechanical valves.
Definition
What is inr?
International Normalized Ratio. A blood test that measures how long it takes blood to clot, used to monitor patients on warfarin. The target INR range depends on the indication — typically 2.0 to 3.0 for atrial fibrillation and 2.5 to 3.5 for mechanical valves.
Related Terms
Related glossary terms.
Stay informed.
Expert cardiac surgery insights from the WhiteGloveMD Heart Team, delivered to your inbox.
No spam. Unsubscribe anytime. HIPAA-compliant.
Have questions about inr?
Our Heart Team provides expert second opinions with plain-language explanations. 24-hour turnaround.