A nurse is caring for a client who is 8 hr postoperative following a left hip arthroplasty. Which of the following laboratory values indicates the nurse should notify the provider?

Choice A reason: Changed mental status, such as confusion, agitation, or delirium, can be a sign of a bladder infection in older adults, as they may not have the typical symptoms of dysuria, frequency, or urgency.

Choice B reason: WBC count 9,000/mm³ is within the normal range of 4,500 to 11,000/mm³ and does not indicate an infection.

Choice C reason: Diminished reflexes are not related to a bladder infection and may be due to aging, neurological disorders, or medication side effects.

Choice D reason: Temperature 37.3°C (99.1°F) is slightly elevated but not indicative of a bladder infection. Older adults may have lower baseline temperatures and may not develop fever in response to an infection.

Choice A: This is incorrect because applying lotion between the toes can create a moist environment that promotes fungal growth and infection. The client should apply lotion to the feet but avoid the areas between the toes.

Choice B: This is incorrect because wearing open-toe shoes can expose the feet to injury and infection. The client should wear well-fitting, closed-toe shoes that protect the feet and prevent pressure ulcers.

Choice C: This is correct because wearing cotton socks can help keep the feet dry and prevent fungal infections. Cotton socks also provide cushioning and reduce friction.

Choice D: This is incorrect because rounding the corners of the toenails can cause ingrown nails, which can lead to infection and ulceration. The client should trim the toenails straight across and file any sharp edges.