Prothrombin Time Calculation

Prothrombin Time Calculator is to calculate the actual time, measured in seconds, for an anticoagulated sample of plasma or whole blood to clot after it is added to a thromboplastin reagent.Thromboplastin is a mixture of tissue factor and calcium chloride.

Prothrombin Time Calculator

PT patient (seconds)
PT normal (seconds)
ISI
International Normalized Ratio (INR)

Prothrombin Time Calculator is to calculate the actual time, measured in seconds, for an anticoagulated sample of plasma or whole blood to clot after it is added to a thromboplastin reagent.Thromboplastin is a mixture of tissue factor and calcium chloride.

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Formula:

INR = (PT patient/PT normal)ISI The INR is calculated from the following formula: * PT patient = patient's measure PT (seconds) * PT normal = laboratory's geometric mean value for normal patients (seconds) * ISI = International Sensitivity Index

Note :This statistics calculator is presented for your own personal use and is to be used as a guide only. Medical and other decisions should NOT be based on the results of this calculator. Although this calculator has been tested, we cannot guarantee the accuracy of its calculations or results.


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