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1 Μαΐ 2023 · Introduction. International normalized ratio (INR) is the preferred test of choice for patients taking vitamin K antagonists (VKA). It can also be used to assess the risk of bleeding or the coagulation status of the patients. Patients taking oral anticoagulants are required to monitor INR to adjust the VKA doses because these vary between patients.
31 Ιουλ 2012 · If the dose of warfarin is too small, the INR will be low, and a patient may get a blood clot. If the dose is too large, the INR will be high, and a patient may develop a bleeding problem. In most cases, an INR between 2 and 3 indicates that the warfarin dose is about right.
normalized ratio (INR) blood test and adjustment of their warfarin dose. It is now possible for a patient to measure his/her INR (self-testing) with a finger-stick drop of blood with use of a small, portable, battery-powered de-vice. Some self-testing patients adjust their dose of warfarin (self-dosing) based on a set of instructions. Even
27 Ιουν 2023 · If the INR is below the target range, a person is considered under-anticoagulated, and there is an increased risk of clotting. If the INR is above the target range, the person is considered over-anticoagulated, and there is an increased risk of bleeding.
The warfarin therapeutic range refers to the target international normalized ratio (INR) values at which the anticoagulant effect of warfarin is deemed effective in preventing thromboembolic events while minimizing the risk of bleeding complications.
For most indications, the therapeutic INR range is 2.0 to 3.0. Exceptions are when war-farin is used for secondary prevention after a myocardial infarction or for patients with high-risk mechanical prosthetic heart valves, in which case the range is 2.5 to 3.5.
30 Νοε 2022 · In healthy people an INR of 1.1 or below is considered normal. An INR range of 2.0 to 3.0 is generally an effective therapeutic range for people taking warfarin for certain disorders. These disorders include atrial fibrillation or a blood clot in the leg or lung.