Correct Answer: B

Rationale: In the orientation phase of a nurse-client relationship, the significant event is the identification of transference phenomenon. Transference phenomena are intensified in relationships with authority figures like nurses and physicians. Positive transferences may include a desire for affection and dependency, while negative transferences may involve hostility and competitiveness. It is crucial to recognize and address these transferences before progress and positive changes can be made in the working stage. The other choices are incorrect; the establishment of roles may occur in the working phase, placing the client within their family structure is not a key event in the orientation phase, and client agreement on the nurse's authority is not the primary focus during this phase.

Correct Answer: C

Rationale: The correct answer is 'displacement.' Displacement is a defense mechanism where emotions or impulses are transferred from their original source to a substitute target. In this scenario, James is displacing his anger from his teacher onto the dog. Choice A, 'denial,' involves refusing to acknowledge an unpleasant reality. Choice B, 'suppression,' is the conscious effort to push unwanted thoughts out of awareness. Choice D, 'fantasy,' refers to imagining scenarios that fulfill one's desires but are not based in reality.

Correct Answer: C

Rationale: The correct answer is a 14-year-old girl needing an appendectomy who is not an emancipated minor. Informed consent can be given by individuals who are competent and not minors. Minors are generally unable to provide informed consent unless they are emancipated. Choice A is incorrect because an 86-year-old male with advanced Alzheimer's disease is considered incompetent to make decisions. Choice D is incorrect because a 6-month-old baby is unable to provide consent. Emancipated minors are an exception to the minor rule, as they can provide consent for their own treatment.

Correct Answer: B

Rationale: Acetaminophen is extensively metabolized in the liver. An acetaminophen overdose can lead to severe liver damage and even liver failure, which can be life-threatening. Choices A, C, and D are incorrect. Acetaminophen overdose does not typically cause life-threatening problems in the lungs, kidneys, or adrenal glands. While prolonged acetaminophen use may increase the risk of renal dysfunction, a single overdose primarily affects the liver.

Correct Answer: A

Rationale: The correct statement is that fat emulsions have a high energy-to-fluid-volume ratio. Fat emulsions are formulated in 10%, 20%, and 30% solutions and supply 1.1, 2, and 3 kilocalories, respectively, for each milliliter. In comparison, a milliliter of 5% dextrose only supplies 0.17 kilocalories. Choices B, C, and D are incorrect. Choice B is false because fat emulsions are essentially pH neutral and isotonic, not hypertonic. Choice C is incorrect because fat emulsions are not basic solutions; they are essentially pH neutral. Choice D is incorrect as fat emulsions are not alkaline; they are pH neutral, making them compatible with most medications.