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The International Normalized Ratio (INR) calculator is a simple, free tool to assess the unified prothrombin time (PT), and its meaning. It's an easy way to evaluate both the extrinsic pathway and the common pathway of coagulation.
INR is derived from prothrombin time (PT) which is calculated as a ratio of the patient’s PT to a control PT standardized for the potency of the thromboplastin reagent international sensitivity index (ISI): INR = (PT patient / PT normal) ISI. The variables used can be defined as:
1 Μαΐ 2023 · The INR is derived from prothrombin time (PT) which is calculated as a ratio of the patient’s PT to a control PT standardized for the potency of the thromboplastin reagent developed by the World Health Organization (WHO) using the following formula: INR = Patient PT ÷ Control PT.
The INR calculator is a tool that takes your PT and converts it into an INR value using the following formula: INR = (Patient’s PT / Mean Normal PT) ^ ISI. Where: Patient’s PT is the prothrombin time measured in seconds. Mean Normal PT is the average prothrombin time of a healthy population.
Prothrombin Time can be interpreted using the International Normalized Ratio (INR), which provides a standardized measure of PT. The formula for calculating INR is: INR = (Patient's PT / Mean Normal PT) × International Sensitivity Index (ISI)
19 Φεβ 2009 · The international normalized ratio (INR) is a standardized number that's figured out in the lab. If you take blood thinners, also called anti-clotting medicines or anticoagulants, it's especially important to check your INR. The INR is figured out using the results of the prothrombin time (PT) test.
INR Calculator simplifies the assessment of unified prothrombin time (PT), making it easy to evaluate both the extrinsic and common pathways of coagulation
