Health Book Citation

After taking into consideration the differences across the general population the inr ranges between 0 8 and 1 2 among them. In certain situations such as having a mechanical heart valve you might need a slightly higher inr.

Summary Of Research Data For Preoperative Ct Epi Pt Inr And Aptt Download Table

It s also called a pt pro time or inr test.

Normal pt ptt and inr values. In healthy people an inr of 1 1 or below is considered normal. Thus if pt 23 s and a normal pt 12 s using a tissue factor with isi 1 2. Called the partial thromboplastin time ptt test which looks at another set of factors.

An inr range of 2 0 to 3 0 is generally an effective therapeutic range for people taking warfarin for disorders such as atrial fibrillation or a blood clot in the leg or lung. Prothrombin time and international normalized. The inr result should be the same regardless of the location where the tests are performed.

Raised range from 2 5 to 3 5 is used in the patient with mechanical heart valves. The normal pt ranges from ten to thirteen seconds. In order to standardize the results between labs the inr was created.

The normal range for clotting is. The normal range for one lab would be different than a normal value from another lab creating problems for patients who were being treated in several locations. The prothrombin time pt is used often along with a partial thromboplastin time ptt to help diagnose the cause of unexplained bleeding or inappropriate blood clots the international normalized ratio inr is a calculation based on results of a pt and is used to monitor individuals who are being treated with the blood thinning medication anticoagulant warfarin coumadin.

Inr ptpatient ptnormal isi the normal inr range for a healthy person not using warfarin is 0 8 1 2. 11 to 13 5 seconds inr of 0 8 to 1 1 for patients on warfarin the therapeutic range is 2 0 to 3 0. As inr is a ratio the general population will have a value of about 1.

The patients with anticoagulant therapy the inr is maintained between 2 to 3. For most patients on warfarin therapy the inr is usually between 2 0 and 3 0.

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