Correct Answer: D

Rationale: The correct answer is D, "Chest and nostrils." This is because observing the movement of the chest and nostrils is the most reliable way to determine if a patient is breathing. The chest rises and falls with each breath, and the nostrils may flare or move as air is inhaled and exhaled. Monitoring these areas provides a direct indication of respiratory effort. Choices A, B, and C are incorrect because they do not directly reflect the act of breathing. Extremities, head, and eyeball movements are not reliable indicators of breathing function.

Correct Answer: A

Rationale: The correct answer is A because when a client's condition improves, resolved nursing diagnoses should be removed from the care plan to reflect the current status accurately. This ensures the care plan remains relevant and effective. Continuing with the existing plan (choice B) may lead to unnecessary interventions. Focusing only on unresolved issues (choice C) overlooks the importance of updating the care plan comprehensively. Delegating the task to another nurse or staff member (choice D) is not appropriate as the nurse updating the care plan should have a thorough understanding of the client's progress and needs.

Correct Answer: D

Rationale: The correct answer is D because pleural effusion is the accumulation of fluid in the pleural space. When auscultating the lungs of a client with pleural effusion, the examiner would note decreased or absent breath sounds over the area where the fluid has accumulated. This is due to the fluid blocking the transmission of sound through the lungs. Pronounced breath sounds (choice A) would not be present due to the fluid obstructing the normal sound transmission. Expiratory wheezes (choice B) are associated with airway obstruction, not fluid accumulation. Friction rub (choice C) is a dry, grating sound heard with inflammation of the pleura, not specifically related to pleural effusion.

Correct Answer: C

Rationale: The correct answer is C: Raw fruits and vegetables. Patients with HIV and diarrhea should avoid raw fruits and vegetables due to their high fiber content, which can exacerbate diarrhea symptoms. Fiber can increase bowel movements and worsen diarrhea. Therefore, avoiding raw fruits and vegetables can help reduce diarrhea. Choice A (Potassium-rich food) is not the best answer because potassium-rich foods are important for patients with HIV to maintain electrolyte balance. Choice B (Liquid nutritional supplements) can actually be beneficial in providing essential nutrients to patients with HIV. Choice D (Frozen products) is not directly related to diarrhea management in patients with HIV.

Correct Answer: B

Rationale: The correct answer is B: Dyspnea. Dyspnea is a common sign of organ rejection after heart transplantation, indicating possible heart failure. Low white blood cell count (A) is not typically a direct sign of organ rejection. ECG changes (C) may occur but are not specific to organ rejection. Fever (D) is a non-specific symptom and can be caused by various factors. Dyspnea is a key indicator that the transplanted heart is not functioning properly and should be closely monitored.