Nursing Diagnosis:Fatigue May be related to Decreased metabolic energy production, increased energy requirements (hypermetabolic state and effects of treatment) Overwhelming psychological/emotional demands Altered body chemistry: side effects of pain and other medications, chemotherapy Possibly evidenced by Unremitting/overwhelming lack of energy, inability to maintain usual routines, decreased performance, impaired ability to concentrate, lethargy/listlessness Disinterest in surroundings...