. . "However, much of the time in clinical practice, because of perceived provider/patient burden, screening most often relies on a single-item fatigue intensity rating.[12-15] According to National Comprehensive Cancer Network (NCCN) guidelines, ratings of fatigue of 4 or higher on a scale of 0 to 10 (where 10 is very severe fatigue) are further evaluated for known contributing factors such as pain, e" . .