Correct Answer: D

Rationale: The correct answer is D: Lowered immune function. Older adults often experience a decline in immune function as they age, making them more vulnerable to infections. This weakened immune system can result in increased susceptibility to various pathogens. Choice A, 'Improved nutritional status,' is incorrect because good nutrition can actually help support the immune system. Choice B, 'Increased mobility,' is not directly related to an increased risk of infections. Choice C, 'Chronic conditions,' while they can contribute to a weakened immune system, do not directly address the primary risk factor for infections in older adults.

Correct Answer: C

Rationale: The correct answer is C: Orange slices. For a client on a mechanical soft diet, foods that are difficult to chew and swallow should be avoided. Orange slices have membranes that can be challenging to consume for individuals with swallowing difficulties. Steamed carrots (Choice A) and mashed potatoes (Choice B) are typically suitable for a mechanical soft diet as they can be easily mashed or cut into smaller pieces. Soft-cooked eggs (Choice D) are also appropriate for this diet as they are soft and easy to chew.

Correct Answer: A

Rationale: Corrected Rationale: The nurse should instruct the client to use pursed-lip breathing during activities to help improve oxygenation. Pursed-lip breathing can keep the airways open longer, facilitating better oxygen exchange and making it easier to exhale carbon dioxide. Choice B is incorrect as physical activity, within the client's limitations, is beneficial for maintaining overall health. Choice C is incorrect as weight-bearing exercises are important for bone health but not directly related to improving oxygenation in COPD. Choice D is incorrect as using a humidifier while sleeping can help with moisture in the airways but does not directly impact oxygenation in COPD.

Correct Answer: B

Rationale: The correct answer is B: Client's response to pain medication. When transferring a client to another unit, it is crucial to communicate how the client is responding to pain medication to ensure continuity of care and appropriate pain management. While nutritional status, daily vital signs, and most recent lab results are important aspects of the client's care, the client's response to pain medication directly impacts their comfort and well-being during the transfer process.

Correct Answer: C

Rationale: The correct answer is to reposition the client every 4 hours. Repositioning the client helps prevent pressure injuries caused by urinary incontinence by relieving pressure on vulnerable areas of the skin. Choice A, using a heating pad for comfort, is not directly related to preventing pressure injuries. Choice B, applying a barrier cream to the skin, may help protect the skin but does not address the underlying cause of pressure injuries. Choice D, changing the client's position every 2 hours, is more frequent than necessary and may not be as effective in preventing pressure injuries as repositioning every 4 hours.