Correct Answer: C

Rationale: The correct answer is C: Urinary tract infections (UTIs). UTIs are a common cause of delirium in hospitalized older adults due to their impact on the central nervous system. UTIs can lead to systemic inflammation and affect cognitive function, resulting in delirium. Other choices like medication side effects, sleep deprivation, and electrolyte imbalances can contribute to delirium but are not as common or direct as UTIs in this population.

Correct Answer: D

Rationale: The correct answer is D because it demonstrates empathy, collaboration, and a patient-centered approach. By asking how to work together, the nurse acknowledges the daughter's concerns and fosters a collaborative relationship. This approach respects the daughter's role in her mother's care and encourages open communication. Choice A is incorrect as it uses a threatening tone and may alienate the daughter, leading to a breakdown in communication. Choice B is incorrect as it dismisses the daughter's cultural values, which are important in providing holistic care. Choice C is incorrect as it suggests that the daughter is incapable of caring for her mother, which can be disempowering and offensive.

Correct Answer: A

Rationale: The correct answer is A: Regular repositioning every 2 hours. Repositioning helps to relieve pressure on vulnerable areas, improving blood flow and preventing tissue damage. This intervention is evidence-based and recommended in pressure ulcer prevention guidelines. Administering pain medications before repositioning (B) does not address the root cause of pressure ulcers. Encouraging excessive hydration (C) may have other health benefits but does not directly prevent pressure ulcers. Using restrictive bandages (D) can actually increase pressure and worsen the risk of pressure ulcers.

Correct Answer: A

Rationale: The correct answer is A: peripheral arterial disease. Altered level of consciousness in an 81-year-old female is unlikely to be directly caused by peripheral arterial disease. Instead, hypoglycemia, pneumonia, and hypotension from dehydration are common causes of altered mental status in the elderly. Hypoglycemia can lead to brain dysfunction, pneumonia can cause low oxygen levels affecting brain function, and dehydration-induced hypotension can reduce blood flow to the brain. Therefore, peripheral arterial disease is not typically a direct cause of altered consciousness in this scenario.

Correct Answer: C

Rationale: The correct answer is C: Pneumonia. Older adults are more susceptible to pneumonia due to weakened immune systems and underlying health conditions. Pneumonia can lead to severe complications, requiring hospitalization. Osteoarthritis (A) primarily affects joints and does not typically lead to hospitalization. Stroke (B) and heart failure (D) are serious conditions but may not be as common for hospitalization as pneumonia in older adults. Pneumonia's impact on the respiratory system and its ability to progress rapidly make it the most common reason for hospitalization in this population.