Correct Answer: B

Rationale: The correct answer is B: Tachypnea and restlessness. This observation takes immediate priority as it indicates potential respiratory distress, a common complication of pneumonia in HIV patients. Tachypnea can be a sign of hypoxia, while restlessness may indicate increased work of breathing. Prompt intervention is crucial to prevent respiratory failure. Choice A: Oral temperature of 100F is not an immediate priority as it is within normal range and may not directly impact the patient's immediate condition. Choice C: Frequent loose stools may suggest gastrointestinal issues but are not as urgent as respiratory distress in this scenario. Choice D: Weight loss of 1 pound since yesterday, while relevant in monitoring the patient's condition, does not require immediate intervention compared to respiratory distress.

Correct Answer: B

Rationale: The correct answer is B: Basal metabolic rate (BMR). BMR refers to the minimum amount of energy required to maintain basic physiological functions at rest. It accounts for about 60-75% of total energy expenditure. It is essential for sustaining life-sustaining activities such as breathing, circulating blood, and maintaining body temperature. Incorrect Choices: A: Resting energy expenditure (REE) is the total amount of energy expended by the body while at rest, including BMR and additional energy for daily activities. C: Nutrient density refers to the amount of nutrients per calorie in a food item, not the energy needed at rest. D: Nutrients are essential substances in food required for growth, maintenance, and repair, but they do not specifically refer to the energy needed at rest.

Correct Answer: A

Rationale: The correct answer is A: Prepare an advance directive. This allows the patient to document their healthcare preferences in advance, ensuring their wishes are known and honored as the disease progresses. It provides clear instructions for healthcare providers and family members, reducing potential conflicts and ensuring the patient's autonomy is respected. Choice B is incorrect as designating an MRP focuses on medical decision-making but may not capture the full range of the patient's care preferences. Choice C involves collaboration with an organization, which may not fully represent the patient's individual wishes. Choice D is incorrect as witnesses are not always necessary for providing instructions, and the presence of witnesses does not guarantee that the patient's wishes will be followed accurately.

Correct Answer: D

Rationale: The correct answer is D: Do not visit if you've had a recent infection. This is crucial to prevent the transmission of infections to the patient, who will have a compromised immune system post-HSCT. Family and friends with recent infections can pose a serious risk to the patient's health. Choice A is incorrect because it instills fear and negativity in the family without providing any tangible benefits. Choice B is incorrect as fasting is not typically required before a HSCT and can be harmful to the patient's nutritional status. Choice C is incorrect as wearing a hospital gown is generally not necessary for visitors, unless specified by the healthcare team for infection control purposes.

Correct Answer: A

Rationale: The correct answer is A: Rinsing the ears with normal saline after swimming. This is because rinsing with normal saline helps to remove excess moisture and debris, preventing bacterial growth that can lead to otitis externa. Avoiding loud noises (B) is important for overall ear health but does not specifically prevent otitis externa. Instilling antibiotic ointments regularly (C) is not recommended as it can disrupt the ear's natural flora. Avoiding cotton swabs (D) is important to prevent injury but does not directly prevent otitis externa.