| posttraumatic stress d. |
[DSM-IV] an anxiety disorder caused by exposure to an intensely traumatic event; characterized by reexperiencing the traumatic event in recurrent intrusive recollections, nightmares, or flashbacks, by avoidance of trauma-associated stimuli, by generalized numbing of emotional responsiveness, and by hyperalertness and difficulty in sleeping, remembering, or concentrating. The onset of symptoms may be delayed for months to years after the event. Terms formerly used for disorders of this type include gross stress reaction, shell shock, and combat (or battle or war) exhaustion, fatigue, or neurosis.
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| posttraumatic v. |
vertigo following some injury, such as fracture of the temporal bone, whiplash (see cervical v.), or lesions of the cerebral cortex or cerebellum.
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| posttraumatic amnesia |
ABBR: PTA. A state of agitation, confusion, and memory loss that the patient with traumatic brain injury (TBI) enters soon after the injury or on awakening from coma. Edema, hemorrhage, contusions, shearing of axons, and m
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