Correct Answer: B

Rationale: The correct answer is B: "Use a bed exit alarm system." For a client with dementia at risk for falls, a bed exit alarm system is beneficial as it alerts staff when the client is trying to get up, helping to reduce fall risks. Choice A, maintaining the client's bed in the lowest position, may not prevent falls as effectively as an alarm system. Choice C, assisting the client with ambulation every hour, may not be feasible and could disrupt the client's rest. Choice D, raising all 4 side rails for safety, can lead to restraint issues and is not recommended as a routine fall prevention measure.

Correct Answer: A

Rationale: When assessing and managing a patient with a suspected UTI, the priority is to start antibiotic therapy to treat the infection. Antibiotics are crucial in eliminating the bacteria causing the UTI. While hydration is important to help flush out the bacteria, pain management can help alleviate discomfort but is not the primary treatment. Patient education is vital for prevention and management but is not the immediate intervention required for a suspected UTI.

Correct Answer: D

Rationale: The correct answer is to keep the cord stump dry until it falls off. This is important to promote natural healing and prevent infection. Choice A is incorrect because cleaning the cord with hydrogen peroxide daily can actually delay healing and increase the risk of infection. Choice B is incorrect as the cord stump typically falls off within 1 to 3 weeks, not in 5 days. Choice C is incorrect because a cord stump turning black is a normal part of the healing process and does not necessarily indicate a problem requiring immediate provider contact.

Correct Answer: D

Rationale: The LPN should question the assignment of replacing the PCA pump cartridge and tubing as it is outside the LPN's scope of practice. LPNs are not trained to handle tasks related to PCA pumps, which involve medication administration and monitoring that are typically within the RN's responsibilities. Assisting a postop client with an incentive spirometer (Choice A), collecting a clean catch urine specimen (Choice B), and providing nasopharyngeal suctioning for a client with pneumonia (Choice C) are all tasks that fall within the LPN's scope of practice and do not require questioning by the LPN.

Correct Answer: A

Rationale: The correct answer is A: Immobility and decreased lung function. Older adults with immobility and decreased lung function are at a higher risk of developing pneumonia. Immobility can lead to decreased lung expansion and impaired clearance of secretions, predisposing to pneumonia. While poor hygiene, aspiration, use of respiratory equipment, medications, poor nutritional status, and compromised immune system can also contribute to pneumonia risk, they are not as directly associated with pneumonia in older adults as immobility and decreased lung function.