Correct Answer: B

Rationale: The correct answer is B: establish a credit body of evidence to support and improve the delivery of care. Conducting research in nursing aims to generate a robust evidence base to inform and enhance the quality of care provided to patients. This evidence helps in identifying best practices, improving patient outcomes, and advancing the nursing profession as a whole. Choice A is incorrect because the main goal of research is not to solely justify the role of nurses, but rather to improve care delivery. Choice C is incorrect as the goal is not to justify an oversupply of nurses, but to address healthcare needs effectively. Choice D is incorrect because the focus of nursing research is on nursing-related issues, not non-nursing problems.

Correct Answer: C

Rationale: The correct answer is C, to have a limited intake of sodium. Lithium can lead to increased sodium levels in the body, potentially causing toxicity. By limiting sodium intake, the patient can maintain a balance and prevent adverse effects. Choice A is incorrect as tyramine content is not directly related to lithium intake. Choice B is incorrect as fluid intake does not have a significant impact on lithium levels. Choice D is incorrect because an adequate intake of sodium can lead to worsening lithium toxicity.

Correct Answer: B

Rationale: When a woman in active labor exhibits signs of prolonged second stage, such as ineffective pushing efforts and slow fetal descent, one of the maternal conditions that should be considered is pelvic floor dysfunction. The pelvic floor muscles play a crucial role in supporting the uterus, bladder, and rectum. If these muscles are weak or dysfunctional, it can lead to difficulty in pushing effectively and impede the descent of the fetus through the birth canal. This can result in prolonged labor and increase the risk of complications for both the mother and the baby. Therefore, assessing for pelvic floor dysfunction is important in addressing the abnormal labor pattern and providing appropriate interventions to support the progress of labor.

Correct Answer: C

Rationale: The correct answer is C: Malpractice. Malpractice refers to professional negligence or failure to perform duties according to accepted standards of practice. In this scenario, the surgeon's act of cutting the patient's bladder during an appendectomy could be considered a breach of duty and failure to provide the expected standard of care, which falls under malpractice. Battery (A) involves intentional harmful or offensive contact without consent. Negligence (B) is the failure to exercise reasonable care, but in this case, it was more than just a lack of care. Tort (D) refers to a civil wrong that causes harm, but malpractice is a specific type of tort related to professional negligence.

Correct Answer: B

Rationale: The correct answer is B: 20-Gauge. The smaller the gauge number, the larger the diameter of the catheter. Blood transfusions typically require a larger catheter size to prevent hemolysis and ensure proper flow. A 20-Gauge catheter is larger than 22-Gauge, 18-Gauge, and 12-Gauge, making it suitable for administering blood. 22-Gauge is too small and can cause hemolysis, 18-Gauge is smaller than the recommended size for blood transfusions, and 12-Gauge is too large and can cause damage to the vein.