1 Nobody else can buy the property during the lease option period. 2  If the Buyer does not exercise the lease option and purchase the property at the end of the lease option, the option expires.  The Buyer is not obligated to buy the property.
INR = [PTpatient Ã· MNPT]ISI. The INR has no units (it is a ratio) and is determined to one decimal place. The first step of the INR calculation is to ânormalizeâ the PT by comparing it to the mean normal prothrombin time (MNPT), the geometric mean of the prothrombin times of the healthy adult population. In the second step, this ratio is raised to a power designated the ISI, or international sensitivity index.
The prothrombin time (PT) â along with its derived measures of prothrombin ratio (PR) and international normalized ratio (INR) â are assays evaluating the extrinsic pathway of coagulation. This test is also called ProTime INR and PT/INR.They are used to determine the clotting tendency of blood, in the measure of warfarin dosage, liver damage, and vitamin K status. PT measures factors I (fibrinogen) , II (prothrombin) , V, VII, and X.aboratory measurement [edit]. The reference range for prothrombin time depends on the analytical method used, but is usually around 12â13 seconds (results should always be interpreted using the reference range from the laboratory that performed the test), and the INR in absence of anticoagulation therapy is 0.8-1.2.