Karnofsky performance status scale

A standard measure of a person’s ability to perform ordinary tasks and carry out daily activities.

The Karnofsky performance status scale is used to assess a person’s prognosis, to monitor changes in a person’s ability to function or decide if a person is suitable for a clinical trial. The person’s performance status is given a score out of 100. The higher the score, the better able a person is to carry out daily activities.

Also called Karnofsky performance scale or Karnofsky scale.