Which of the following clinical manifestations is most indicative of acute respiratory distress syndrome (ARDS)?

Correct Answer: C

Rationale: Rationale: - ARDS is characterized by severe hypoxemia and respiratory distress. - Tachypnea is a hallmark sign of ARDS due to the body's compensatory mechanism to increase oxygenation. - Hypoxemia refractory to supplemental oxygen signifies the inability to improve oxygen levels despite intervention. - Choices A, B, and D do not align with typical manifestations of ARDS, as they do not directly reflect severe hypoxemia or respiratory distress.

Correct Answer: A

Rationale: Demonstrating breastfeeding positions that minimize pressure on the incision site should be the nursing intervention prioritized to address the client's concerns. This is important because it ensures that the client can breastfeed comfortably while also protecting the healing incision. By showing the client appropriate positions, such as the football hold or side-lying position, the nurse can help minimize discomfort and promote successful breastfeeding without compromising the cesarean incision's healing process. It is crucial to support the client in establishing a good latch and positioning to encourage proper milk transfer and bonding while being mindful of the incision site.

Correct Answer: B

Rationale: The correct answer is B: pulse rates. Pulse rates can be analyzed on the ratio level of measurement because they have a true zero point and allow for meaningful ratios to be calculated. This means that we can perform operations such as addition, subtraction, multiplication, and division on pulse rate data. In contrast, the other options (A: eye color, C: ethnicity, D: gender) are categorical data that do not have a true zero point and therefore cannot be analyzed on the ratio level. Eye color, ethnicity, and gender are all examples of nominal data which only allow for qualitative classification and do not have a numerical value that can be used in mathematical operations.

Correct Answer: D

Rationale: The correct answer is D because an ethical dilemma arises when there is a conflict between two or more ethical principles, leading to a difficult decision-making situation for Nurse Mauve. This involves weighing the benefits and consequences of each ethical principle to determine the best course of action. Choice A is incorrect as time pressure does not define an ethical dilemma. Choice B is incorrect because ethical dilemmas involve conflicting choices, not unclear ones. Choice C is incorrect as the conflict in an ethical dilemma is not necessarily with a superior but can be internal or with other stakeholders.

Correct Answer: C

Rationale: The correct answer is C: Macrophages. Macrophages are antigen-presenting cells that engulf pathogens and present their antigens to T cells, initiating an immune response. They express major histocompatibility complex (MHC) molecules necessary for T cell recognition. B cells also present antigens but primarily to B cells for antibody production. NK cells are involved in killing infected cells, not antigen presentation. Eosinophils are mainly involved in allergic responses and defense against parasites, not antigen presentation.

Correct Answer: C

Rationale: The correct answer is C: unfreezing. Unfreezing is the initial stage in Lewin's planned change model where individuals become open to change by recognizing the need for it. During this stage, the nurse identifies the need for change, plans strategies to implement it, and works on overcoming resistance by ensuring that the driving forces (reasons for change) outweigh the restraining forces (barriers to change). Refreezing (A) is the final stage where the changes are reinforced and integrated into the organization. Movement (B) is the stage where actual change occurs, and in activism (D) is not a recognized stage in Lewin's model.

Correct Answer: A

Rationale: The correct answer is A: Salary of nurses. In a study, the researcher is likely to exclude salary as it is not directly related to the quality of patient care. The focus should be on factors like responsiveness, caring attitude, and competence of nurses, which directly impact patient outcomes. Including salary may introduce bias and distract from the main objective of studying patient care quality. Responsiveness, caring attitude, and competence are crucial aspects of nursing care that directly influence patient satisfaction and health outcomes. Salary, on the other hand, is an external factor that may not directly correlate with the quality of care provided.

Correct Answer: A

Rationale: Correct Answer: A Rationale: 1. Confirming the patient's identity ensures the right patient is receiving the intended procedure. 2. Verifying the procedure site using two identifiers prevents errors in site selection. 3. This step aligns with the World Health Organization's Surgical Safety Checklist, reducing the risk of wrong-site procedures. 4. Positioning, sedation, and local anesthesia are important but secondary to ensuring the correct patient and site. Summary: - Option B: Positioning is essential but not the top priority for procedural accuracy. - Option C: Sedation aims to minimize discomfort but does not guarantee procedural accuracy. - Option D: Administering local anesthesia is crucial but not as critical as confirming patient identity and procedure site.

Correct Answer: C

Rationale: The correct answer is C because an open forum to solicit questions related to the topic under discussion is a common practice after a lecture presentation. This allows for clarification and deeper understanding. Choice A is incorrect as evaluation usually comes after the lecture. Choice B is incorrect because the Q&A portion typically focuses on the lecture content only. Choice D is incorrect as cracking humorous anecdotes is not a standard practice after a lecture.