Correct Answer: B

Rationale: The correct answer is B because deep breathing and coughing exercises help prevent complications such as atelectasis and pneumonia after abdominal surgery. By promoting lung expansion and clearing secretions, these exercises enhance oxygenation and prevent respiratory issues. Administering pain medication (A) is important but not the priority. Monitoring for infection (C) and providing wound care (D) are also crucial but come after ensuring respiratory function.

Correct Answer: A

Rationale: The correct answer is A because increased sputum production and shortness of breath are classic signs of exacerbation in COPD. This indicates worsening airflow limitation and potential respiratory distress. Monitoring these signs helps in early intervention and preventing further complications. B: Improved oxygen saturation is not a sign of exacerbation in COPD. It would actually suggest improvement in the patient's condition. C: Increased energy levels are not typical signs of exacerbation in COPD. Patients usually experience fatigue and weakness during exacerbations. D: Decreased respiratory rate is not indicative of exacerbation in COPD. It could be a sign of respiratory depression or sedation, but not exacerbation.

Correct Answer: A

Rationale: The correct answer is A because it reflects the shift towards a holistic view of health focusing on preventive measures and lifestyle choices. In the 1950s, the emphasis was more on treating diseases rather than preventing them through healthy habits. Choice B is incorrect as it only focuses on identifying pathogens, not overall health. Choice C is incorrect because it emphasizes physician-centered healthcare rather than individual responsibility. Choice D is incorrect as it only considers the absence of symptoms, not overall well-being. Therefore, A is the best choice as it aligns with the modern understanding of health promotion and disease prevention.

Correct Answer: B

Rationale: The correct answer is B: 1.5 m. This distance is known as the personal distance in communication, where most interviews take place. Personal distance allows for a comfortable level of interaction without invading personal space. Choice A (1 m) is too close and may make the patient uncomfortable. Choice C (2 m) is too far for an intimate interview setting. Choice D (3 m) is too distant and may lead to a lack of connection and understanding during the interview. Overall, B is the best choice for a nurse-patient interview to ensure a respectful and effective conversation.

Correct Answer: D

Rationale: The correct answer is D: Pitting edema and weight gain. In chronic heart failure, worsening symptoms indicate fluid retention. Pitting edema in the extremities and weight gain are signs of fluid overload, indicating worsening heart failure. It is crucial for the nurse to monitor these signs to prevent exacerbation. Fatigue and shortness of breath (Choice A) are common symptoms in heart failure but not specific to worsening condition. Increased urine output (Choice B) is not typically seen in worsening heart failure as the kidneys may be compromised. Decreased blood pressure (Choice C) can occur in acute decompensation but is not a consistent sign of worsening chronic heart failure.