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 INR test result is given as a number. There are no units of measurement because the number is a ratio: the ratio of the sampleâs Prothrombin Time (PT â a measure of clotting), to the Prothrombin Time of a normal sample of blood. A result of 1.0, up to 1.5, is therefore normal.hare this page: Tweet. The INR is a test of blood clotting, which is primarily used to monitor warfarin therapy, where the aim is to maintain an elevated INR in a certain range eg, 2.0 to 3.0.