Correct Answer: D

Rationale: The correct answer is D: Impaired gas exchange related to alveolar-capillary membrane changes. This nursing diagnosis is appropriate for a patient with pneumonia and lower lobe infiltrates because pneumonia causes inflammation and fluid accumulation in the alveoli, impairing gas exchange. The nurse chose this diagnosis based on the patient's chest x-ray results indicating lower lobe infiltrates, which directly affect gas exchange. Choice A is incorrect because "ineffective breathing pattern" does not specifically address the underlying physiological issue of impaired gas exchange. Choice B is incorrect as it focuses on infection risk from the chest x-ray procedure, not the patient's medical condition. Choice C is incorrect as dehydration is not directly related to pneumonia and infiltrates.

Correct Answer: D

Rationale: Correct Answer: D - Lubricating eye drops Rationale: Lubricating eye drops help prevent complications such as corneal abrasions in patients with Bell's Palsy by keeping the eye moist and preventing dryness. Bell's Palsy can cause difficulty in closing the eye properly, leading to dryness and potential damage to the cornea. Using lubricating eye drops helps maintain eye health. Summary of Incorrect Choices: A: Megavitamin therapy - Not directly related to preventing complications in Bell's Palsy. B: Application of ice to the affected area - Ice may not address eye dryness or prevent corneal abrasions. C: Elastic bandages - Not relevant to preventing complications associated with Bell's Palsy.

Correct Answer: C

Rationale: Objective data in nursing refers to measurable and observable information. Respirations at 16 per minute are a specific, quantifiable measurement that the nurse can directly observe, making it objective data. This information is vital for assessing the patient's respiratory status accurately. Choice A is incorrect because stating "doesn't feel good" is a subjective statement based on the patient's perception and cannot be directly measured or observed. Choice B, reporting a headache, is also subjective as it relies on the patient's description of their symptoms. Choice D, being nauseated, is subjective as well, as it is a symptom reported by the patient and not a quantifiable measurement. In summary, choice C is correct as it represents objective data due to its quantifiable and observable nature, while the other choices are subjective and based on the patient's perceptions or feelings.

Correct Answer: A

Rationale: The correct answer is A. In the Snellen eye chart test, the first number (20) represents the distance at which the client is viewing the chart, and the second number (40) represents the distance at which a person with normal vision can read the same line. Therefore, a client with 20/40 vision sees letters at 20 feet that others with normal vision can read at 40 feet. Choices B, C, and D are incorrect because they do not accurately reflect the interpretation of the 20/40 vision result from the Snellen eye chart test. B is incorrect because the client does not see letters at 40 feet that others can read at 20 feet. Choices C and D are incorrect because the Snellen eye chart test measures visual acuity, not color perception.

Correct Answer: C

Rationale: Rationale: Choice C is the correct answer because following safer-sex practices is crucial in preventing the spread of HIV/AIDS. By emphasizing this point, the nurse can educate clients on reducing the risk of transmission. Safer-sex practices include using condoms and practicing monogamy. Choice A is incorrect because avoiding recreational drugs and alcohol, while important for overall health, is not directly related to preventing the spread of HIV/AIDS. Choice B is incorrect as it is essential for individuals to inform their sexual partners about their HIV status to prevent transmission and ensure informed consent. Choice D is incorrect because while it may be required by law in some places, it is not the most crucial point for preventing the spread of HIV/AIDS within a support group setting.