Correct Answer: C

Rationale: The correct answer is C: case manager, according to Peplau's interpersonal relations model. In this scenario, the nurse is coordinating resources and services for the client, which aligns with the role of a case manager. Peplau's model emphasizes the therapeutic relationship between the nurse and client, focusing on understanding the client's needs and providing support. The nurse in this situation is not just providing direct care (caregiver), advocating for change (change agent), or focusing solely on cultural aspects (translator). The nurse's role as a case manager involves addressing the client's complex needs, coordinating care, and advocating for the client's well-being, making it the most appropriate choice in this context.

Correct Answer: A

Rationale: The correct answer is A: Magnet therapy. Magnet therapy is contraindicated in pregnancy due to the risk of unknown effects on the fetus. Magnets may interfere with the body's natural magnetic fields, potentially causing harm to the developing baby. Aromatherapy (B), imagery (C), and therapeutic touch (D) are generally considered safe during pregnancy when performed by trained professionals and with appropriate precautions. Aromatherapy uses essential oils, imagery involves mental visualization techniques, and therapeutic touch uses energy-based techniques that do not pose significant risks to the pregnant woman or the fetus.

Correct Answer: B

Rationale: The correct answer is B: Method. In the scientific process, the method refers to designing and planning the research study. In this scenario, the group of nurses is planning how to improve teaching effectiveness for patients with hearing impairment, which involves designing the study by using a Likert scale pre-post teaching evaluation, conducting a hearing test, and involving social work for evaluation. This step focuses on determining how the research will be carried out, including data collection methods and procedures. The other choices are incorrect because: A: Hypothesis - This step involves formulating a testable prediction based on observations or existing knowledge. C: Results - This step involves analyzing the data collected and drawing conclusions. D: Evaluation - This step involves assessing the effectiveness or outcomes of the research study.

Correct Answer: B

Rationale: The correct answer is B: length of hospital stay. DRGs aim to reduce healthcare costs by incentivizing hospitals to provide efficient care and discharge patients sooner. Shortening the length of hospital stay helps decrease overall healthcare expenses without compromising the quality of care. Choices A, C, and D are incorrect because DRGs focus on the duration of hospitalization, not necessarily on hospital admission rates, outpatient services, or specialty groups. Shortening hospital stays is a more direct way to control costs within the inpatient setting.

Correct Answer: B

Rationale: The correct answer is B because quantifying the amount and intensity of care required is essential to determine staffing needs based on patient acuity. This involves assessing the complexity and severity of patients' conditions, which directly impacts the level of care needed. Patient satisfaction (A) does not provide objective data on acuity. Examining skill mix (C) is important but not the primary factor in determining acuity. Hospital days (D) reflect length of stay, not acuity level.