While you are taking Coumadin, be sure to tell your doctor if you change your diet or eating pattern because this is likely to change your vitamin K intake. Your doctor can monitor your PT/INR test closely when your diet changes and can adjust your Coumadin as needed.
The experiments took place at Western Electric's factory at Hawthorne, a suburb of Chicago, in the late 1920s and early 1930s.
Aerial view of the Hawthorne Works, ca. 1925. The Hawthorne effect (also referred to as the observer effect) is a type of reactivity in which individuals modify or improve an aspect of their behavior in response to their awareness of being observed.