When the nurse demonstrates exhaustion and feels helpless and frustrated with the demands of her ...

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Burnout occurs as a result of chronic stress; it is a syndrome of emotional exhaustion, deperson-alization of others, and perceptions of reduced personal accomplishment, resulting from intense involvement with people in a caregiving environment.
The fight-or-flight response has been expanded on and is described as part of the general adapta-tion syndrome.
Ineffective coping is defined as an inability to form a valid appraisal of the stressors, inadequate choices of practised responses, and/or inability to use available resources; this is not what the nurse is experiencing.
Post-traumatic stress disorder occurs when a trauma's effects last well after the traumatizing event ends; this is not what the nurse is experiencing.