Correct Answer: B

Rationale: The correct answer is B: a semi-private room. For a burn patient like Mr. Boy, a semi-private room is preferred to provide a more controlled environment for infection prevention, wound care, and privacy. Strict isolation (A) is not necessary as his burns are not infectious. Liberal visiting (C) can increase the risk of infection and compromise his recovery. Sharing equipment (D) can lead to cross-contamination and is not recommended for burn patients. In summary, a semi-private room balances infection control and patient comfort for burn patients.

Correct Answer: C

Rationale: The correct answer is C: Normal saline solution. Phenytoin is incompatible with dextrose solutions, so options A and D are incorrect. Lactated Ringer's solution contains calcium, which can interact with phenytoin, leading to precipitation. Therefore, option B is also incorrect. Normal saline is the most compatible diluent for phenytoin, maintaining the drug's stability and effectiveness. It is essential to use the appropriate diluent to prevent adverse reactions or drug interactions.

Correct Answer: A

Rationale: The correct answer is A: Where is the pain located? In the PQRST mnemonic, "P" stands for provocation, "Q" for quality, "R" for region/radiation, "S" for severity, and "T" for timing. The question "Where is the pain located?" corresponds to the "R" component, which is region/radiation. This question helps the nurse identify the specific area where the pain is localized, which can provide valuable information for diagnosis. Explanation of other choices: B: What causes the pain? This question relates more to the "P" component, which is provocation, rather than the region/radiation aspect. C: Does it come and go? This question pertains to the "T" component, which is timing, focusing on the pattern of the pain rather than the specific location. D: What does the pain feel like? This question is more aligned with the "Q" component, which is quality,

Correct Answer: A

Rationale: The correct answer is A because during the first phase of the nursing process (assessment), the nurse gathers a comprehensive database of information about the patient's health status. This step is crucial for identifying the patient's needs and developing a holistic care plan. Choice B is incorrect because identifying nursing diagnoses typically occurs in the second phase (diagnosis). Choice C is incorrect as intervening based on care priorities happens in the third phase (planning and implementation). Choice D is incorrect as determining outcomes achieved is part of the final phase (evaluation).

Correct Answer: B

Rationale: The correct answer is B: Presbycusis. Presbycusis refers to age-related hearing loss, commonly affecting higher frequencies. As people age, changes in the inner ear structures can lead to hearing loss. Otoplasty (A) is a surgical procedure to correct ear deformities, not related to aging. Otalgia (C) refers to ear pain, not specifically related to aging. Tinnitus (D) is the perception of ringing or buzzing in the ears, which can occur at any age and is not exclusive to age-related hearing loss.