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.

Correct Answer: A

Rationale: The correct answer is A: Information regarding shelters. Providing information about shelters is crucial in cases of family violence as it ensures the client has a safe place to go after discharge, prioritizing their immediate safety. Option B, instructions regarding calling the police, may be necessary but ensuring a safe place to stay is more immediate. Option C, instructions regarding self-defense classes, may not be appropriate as the priority is to ensure the client's safety rather than teaching self-defense. Option D, explaining the importance of leaving the violent situation, is relevant but providing information on immediate shelter options is the priority.

Correct Answer: D

Rationale: The correct action for the LPN/LVN to take first is to ask the client to inform the staff if she has negative thoughts about other clients. This approach is crucial as it helps in monitoring the client's thoughts and behaviors, potentially preventing any harmful actions towards others on the unit. Asking for the client's definition of 'provocative sluts' (Choice A) may not address the immediate concern of monitoring the client's harmful thoughts. Asking the young female clients to dress less provocatively (Choice B) is inappropriate and victim-blaming. Asking the client to discuss her concerns in the next group session (Choice C) may not be effective in addressing the potential harm the client's thoughts could pose to others on the unit.

Correct Answer: D

Rationale: The accurate statement about contemporary mental health nursing practice is that the psychiatric nursing client may be an individual, family, group, organization, or community. Mental health nursing extends beyond individual care to address the impact of psychiatric stressors on families, groups, and entire communities. Choices A, B, and C are incorrect: A is false as there are various theoretical frameworks used in psychiatric nursing, B is inaccurate as psychiatric nursing is a core discipline in mental health, and C is wrong as contemporary psychiatric nursing involves various settings beyond just inpatient care.

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.