The client, a 15-year-old whose father has been suffering from post-traumatic stress disorder (PTSD) since returning from combat, is now seeing a counselor himself with reports of flashbacks that are similar to his father's symptoms. Which of the following interpretations of the client's behavior is supported by evidence?

Choice A reason: NMS occurs in patients taking antipsychotics, particularly dopamine antagonists. Low suspicion of anyone on antipsychotics is incorrect because NMS is directly linked to antipsychotic use.

Choice B reason: Neurological symptoms such as tremors, delirium, agitation, and seizures are hallmark signs of NMS. These reflect dopamine blockade and autonomic instability.

Choice C reason: Muscular rigidity, autonomic instability (hypotension or hypertension), and tachycardia are classic features of NMS. These symptoms are critical for diagnosis and require immediate intervention.

Choice D reason: NMS is associated with elevated creatine phosphokinase (CPK) due to muscle breakdown and leukocytosis from systemic stress. Low levels would not be consistent with NMS.

Choice Diazepam reason: Diazepam is widely used for acute panic attacks and status epilepticus because of its rapid onset and effectiveness in calming severe anxiety and stopping seizures. It is not primarily used for insomnia or long-term management, but rather for immediate control.

Choice Clonazepam reason: Clonazepam is effective in long-term management of panic disorder and alcohol withdrawal due to its longer half-life, which provides sustained anxiolytic effects. It is not typically used for acute panic attacks or insomnia.

Choice Alprazolam reason: Alprazolam is primarily used for anxiety and panic attacks. It has a short half-life and rapid onset, making it effective for acute anxiety episodes but not suitable for long-term management due to risk of dependence.

Choice Chlordiazepoxide reason: Chlordiazepoxide is used in long-term management of alcohol withdrawal and panic disorders. Its long half-life and slower onset make it appropriate for sustained therapy rather than acute episodes.

Choice Triazolam reason: Triazolam is primarily used for insomnia because of its short half-life and rapid onset. It is not effective for long-term management or acute panic attacks.

Choice Temazepam reason: Temazepam is also primarily used for insomnia. It is effective in inducing sleep but not indicated for panic disorder or long-term management.

Choice Midazolam reason: Midazolam is widely used for status epilepticus and acute panic attacks due to its rapid onset and strong sedative properties. It is often used in emergency or procedural settings.

Choice Lorazepam reason: Lorazepam is widely used for acute panic attacks and status epilepticus. It has a relatively fast onset and is effective in calming severe anxiety and stopping seizures.