A client tells a nurse about recent episodes of strange behavior that the client cannot recall but has discussed with family. The client reports being told of going out late at night dressed, but not in the usual wardrobe. Upon return, the client cannot recall any of the event. The nurse suspects the client is dealing with which personality disorder?

The clinical presentation of "missing time," behavior that feels alien to the individual’s normal personality, and amnesia for specific events are hallmark indicators of a dissociative process. While the prompt asks about personality disorder, the symptoms described specifically align with dissociative identity disorder (DID), where the consciousness shifts between distinct personality states or alters. Rationale: A. Body dysmorphic disorder is characterized by an obsessive preoccupation with perceived flaws in physical appearance. It does not involve memory loss or distinct behavioral changes, but it manifests as repetitive behaviors like checking mirrors or seeking cosmetic procedures to fix a non-existent defect. B. Dissociative identity disorder (formerly multiple personality disorder) involves a disruption of identity characterized by two or more distinct personality states. A key diagnostic criterion is recurrent gaps in the recall of everyday events or important personal information. The client’s strange behavior and lack of memory regarding their nighttime outings are classic examples of dissociative amnesia during an alter's transition. C. Antisocial personality disorder is defined by a pattern of disregard for and violation of the rights of others. While these individuals may be deceitful, they do not experience amnesia for their actions. Their behaviors are intentional and driven by a lack of remorse, rather than a fragmented consciousness. D. Borderline personality disorder involves intense emotional instability, impulsivity, and a fragmented self-image. Individuals with BPD may experience transient dissociation during periods of extreme stress, but they do not typically exhibit the organized, alternate personality behaviors and profound amnesia described in this scenario.