Correct Answer: B

Rationale: The correct answer is B because SSRIs like fluoxetine typically take several weeks to reach their full therapeutic effect, so it's important to set realistic expectations for the client. Choice A is incorrect as dizziness is a common side effect but not the most important teaching point. Choice C is incorrect as avoiding tyramine-rich foods is more relevant for MAOIs. Choice D is incorrect as fluoxetine should be taken consistently, not only when the client feels depressed, to maintain therapeutic blood levels.

Correct Answer: A

Rationale: Administering prescribed medication to manage symptoms is the priority intervention for a client with symptoms of mania. During a manic episode, the client may be at risk of harm to self or others due to impulsivity and poor judgment. Medication helps stabilize the client, reduce manic symptoms, and prevent further escalation. Providing a calm environment (choice B) is important but not the priority when the client's safety is at risk. Encouraging expression of feelings (choice C) and reinforcing medication adherence (choice D) are valuable aspects of care but addressing the acute symptoms of mania takes precedence to ensure the client's immediate safety and well-being.

Correct Answer: A

Rationale: Overeaters Anonymous is a self-help group characterized by shared goals among members to address eating disorders. This provides a supportive environment for personal change and growth. Choice B is incorrect as members are not required to remain anonymous in Overeaters Anonymous. Choice C is incorrect as the leader in such self-help groups is usually a member who has experienced similar issues, not necessarily a professional mental health care provider. Choice D is incorrect as attendance at Overeaters Anonymous meetings is voluntary and not prescribed by a healthcare provider.

Correct Answer: A

Rationale: Encouraging the client to talk about the flashbacks is the most appropriate initial intervention for a client with PTSD experiencing flashbacks and nightmares. This intervention helps the client express their feelings, thoughts, and experiences related to the trauma they are going through. It can assist in processing the traumatic events and starting the healing process. Choice B, assisting the client in developing coping strategies, is important but should come after the client has started to verbalize and process their experiences. Choice C, discussing relaxation techniques, may be beneficial later in the treatment process but may not be as effective initially as addressing the traumatic experiences. Choice D, referring the client to a PTSD support group, is also valuable but may not be as immediate as encouraging the client to talk about their flashbacks to begin the therapeutic process.

Correct Answer: C

Rationale: The correct answer is C. PET scans are primarily used to detect and observe the metabolic activity in various parts of the brain. This helps in diagnosing conditions related to brain function, such as tumors, brain disorders, and overall brain activity. Choices A, B, and D are incorrect because PET scans focus on metabolic activity and functions in the brain rather than solely indicating the presence of tumors, outlining brain structures, or showing biochemical levels of neurotransmitters.