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.
International Normalized Ratio Blood Test-INR Normal INR Values: 1 to 2 The INR is used to make sure the results from a PT test is the same at one lab as it is at another lab. In the 1980s the World Health Organization determined that patients may be at risk because the results of a PT test would vary from one lab to another, based upon the way the test was done.