Chapter 13: Personality Disorders

The content distinguishes between flexible personality traits and the inflexible, maladaptive coping strategies seen in PDs, which often lead to significant functional impairment and interpersonal conflict. The text categorizes these disorders into three specific clusters: Cluster A, characterized by odd or eccentric behaviors, includes Paranoid Personality Disorder (pervasive distrust and suspiciousness), Schizoid Personality Disorder (emotional detachment and preference for solitary activities), and Schizotypal Personality Disorder (cognitive distortions, magical thinking, and eccentricities similar to schizophrenia). Cluster B involves dramatic, emotional, or erratic presentations, featuring Antisocial Personality Disorder (disregard for the rights of others, deceit, lack of remorse, and impulsivity), Borderline Personality Disorder (BPD) (marked instability in mood, relationships, and self-image, often utilizing the primitive defense mechanism of splitting and presenting high risks for self-harm or suicide), Narcissistic Personality Disorder (grandiosity, need for admiration, and lack of empathy), and Histrionic Personality Disorder (excessive emotionality and attention-seeking behaviors). Cluster C, defined by anxious or fearful traits, encompasses Avoidant Personality Disorder (social inhibition driven by feelings of inadequacy), Dependent Personality Disorder (excessive need to be taken care of, leading to submissive and clinging behavior), and Obsessive-Compulsive Personality Disorder (OCPD) (preoccupation with orderliness, perfectionism, and control). The summary further explores the multifactorial etiology of these conditions, including genetic predispositions, neurobiological dysregulation (such as serotonin abnormalities), and environmental factors like childhood trauma or invalidating environments. Key nursing interventions are emphasized, focusing on safety assessment, maintaining professional boundaries, managing manipulative or aggressive behaviors through consistent limit-setting, and navigating the challenges of countertransference. Finally, it reviews evidence-based treatments, highlighting Dialectical Behavior Therapy (DBT) for emotional regulation and distress tolerance, systems training (STEPPS), and pharmacological strategies targeting specific symptoms like anxiety, aggression, or affective instability.