The nurse is caring for a patient diagnosed with posttraumatic stress disorder (PTSD). In this disorder, which element of the nervous system does the nurse identify as malfunctioning?
1. Central
2. Peripheral
3. Sympathetic
4. Parasympathetic
Answer: 4
Explanation: The parasympathetic nervous system is responsible for "resetting" the autonomic nervous system after activation and can often function on hyper-alert in individuals who have experienced trauma. The peripheral nervous system consists of the nerves and ganglia located outside the central nervous system. The central nervous system consists of the brain and the spinal cord. The sympathetic nervous system mobilizes body systems during activity (especially during stress).
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