Correct Answer: C

Rationale: Early signs of lithium toxicity include gastrointestinal upset, tremors, increased urination, and increased thirst. Improved vision is not a typical early sign of lithium toxicity and should be ruled out as a symptom to watch for.

Correct Answer: C

Rationale: Emotional trauma can often manifest as physical symptoms, such as headaches, stomachaches, and other somatic complaints. These physical manifestations can be long-lasting and impact the individual's overall well-being.

Correct Answer: D

Rationale: The behavior of an 8-year-old boy playacting as a police officer and 'locking up' other children to the point of scaring them is likely a symptom of traumatization. Children may reenact traumatic experiences through play, and acting out aggressive or controlling roles can be a sign of underlying trauma. This behavior should be further assessed and addressed with appropriate support and intervention to help the child process and cope with any potential trauma.

Correct Answer: C

Rationale: During the maintenance therapy stage for bipolar I disorder, it is common to lower the dosage of lithium to prevent side effects while still maintaining stability. Lowering the dosage helps to find the lowest effective dose that can still manage symptoms effectively with minimal side effects.

Correct Answer: D

Rationale: The correct answer is D, Substance use disorder. Ramelteon is preferred for patients with substance use disorder because it lacks abuse potential. This makes it a safer choice for individuals with a history of substance misuse. Choosing a medication with a lower risk of abuse in this population is crucial to prevent potential misuse or dependence issues.