Correct Answer: D

Rationale: The correct answer is to investigate for signs of infection when caring for a client diagnosed with delirium. Infections can frequently cause or worsen delirium. While investigating medication history, sensory deficits, and cognitive functioning may be important in the overall care of the client, when prioritizing, the nurse should first rule out or address potential infections due to their significant impact on delirium.

Correct Answer: D

Rationale: The most relevant suggestion for minimizing stress in individuals with Alzheimer's disease is to maintain consistency in the environment, routine, and caregivers. This approach helps create a sense of familiarity and security for the individual, reducing stress and anxiety. Choice A is incorrect as it suggests allowing the client to go to bed multiple times during the day, which may disrupt their routine and lead to confusion. Choice B is incorrect as continuously testing cognitive functioning can be overwhelming and stressful for the individual. Choice C is also incorrect as providing reality orientation in cases of severe memory loss can cause frustration and confusion, ultimately increasing stress levels.

Correct Answer: B

Rationale: The correct answer is B because taking warfarin later on the same day if a dose is missed helps maintain therapeutic levels. Choice A is incorrect because warfarin should be taken with food to enhance absorption. Choice C is incorrect as skipping a dose can lead to fluctuations in warfarin levels. Choice D is incorrect as taking an additional dose can increase the risk of bleeding.

Correct Answer: A

Rationale: Morals are the values and beliefs that guide behavior and decision-making. While beliefs are part of the equation, morals specifically dictate how individuals act and make choices. Ethics, on the other hand, refer to a system of moral principles governing conduct. Autonomy, although important, is not directly related to the values and beliefs that guide behavior and decision making.

Correct Answer: A

Rationale: Hand hygiene is considered the most effective method to prevent the spread of infection in a healthcare setting. Proper hand hygiene, including washing hands with soap and water or using hand sanitizer, is crucial in reducing the transmission of pathogens from one person to another. While wearing personal protective equipment, sterilizing equipment, and isolating infected patients are also important infection control measures, they are not as universally effective as hand hygiene in preventing the spread of infections. Personal protective equipment can prevent contact with infectious materials, sterilizing equipment reduces the risk of contamination, and isolating infected patients helps prevent the spread of specific infections, but they are more targeted approaches compared to the broad and essential practice of hand hygiene.