The PMHNP is preparing to evaluate a new client, a 39-year-old single woman. The client is charming, gregarious, and lively, and she is dressed in colorful clothing. As the session continues, she appears to be excessively emotional and attention-seeking, using dramatic language. She says, "I am just a basket case! I will probably need to come in every week." Which diagnosis would be most appropriate?

Choice A reason: Histrionic personality disorder is characterized by excessive emotionality, attention-seeking behavior, dramatic expression, and a need for approval. The client’s colorful attire, dramatic speech, and desire for frequent sessions align closely with this diagnosis. Choice B reason: Narcissistic personality disorder involves grandiosity, a need for admiration, and a lack of empathy. While the client is attention-seeking, there is no evidence of grandiosity or entitlement in her presentation. Choice C reason: Borderline personality disorder includes emotional instability, fear of abandonment, and impulsivity. Although dramatic behavior may be present, the client does not exhibit the hallmark instability or self-harming behaviors typical of borderline personality disorder. Choice D reason: Antisocial personality disorder involves disregard for social norms, deceitfulness, and lack of remorse. The client’s behavior does not reflect these traits, making this diagnosis inappropriate.