Correct Answer: B

Rationale: The correct answer is B because normal age-related immune changes can result in a lower fever response to illness in older adults. As people age, their immune system may not respond as vigorously to infections, leading to a muted fever response. This explains why the older woman with a UTI experienced only mild symptoms and a low-grade fever. Choice A is incorrect because the seriousness of a UTI does not necessarily correlate with the presence or absence of a fever. Choice C is incorrect as older adults can still develop fevers in response to infections. Choice D is incorrect as it is too broad and does not specifically address the age-related immune changes that impact fever response in older adults.

Correct Answer: A

Rationale: The correct answer is A: Decreased lean body mass and decreased glomerular filtration rate. 1. Decreased lean body mass: With aging, there is a natural decline in muscle mass which can affect the distribution and metabolism of digoxin, potentially increasing its concentration in the body. 2. Decreased glomerular filtration rate: As individuals age, there is a decrease in kidney function, particularly in the glomerular filtration rate, which can lead to decreased excretion of digoxin, resulting in its accumulation and potential toxicity. Therefore, these age-related changes can place the older client at risk for digoxin toxicity. Summary: B: Increased muscle mass and improved renal function - This choice is incorrect as aging is associated with decreased muscle mass and declining renal function. C: Higher levels of albumin and increased drug metabolism - This choice is incorrect as aging is typically associated with decreased albumin levels and slower drug metabolism. D: Decreased hepatic function and increased body fluid

Correct Answer: A

Rationale: The correct answer is A: Determine whether there are medication duplications. This is the first intervention the nurse should take because medication duplications can lead to potential drug interactions and adverse effects. By identifying duplicate medications, the nurse can prevent harm to the client. Choice B: Starting to educate the client on proper medication adherence may be important, but it is not the first priority in this scenario. Choice C: Monitoring the client's blood pressure closely is not directly related to the issue of multiple medications and should not be the first intervention. Choice D: Asking the client to stop taking some medications without proper assessment and consultation with a healthcare provider can be risky and may not address the issue of medication duplications.

Correct Answer: C

Rationale: The correct answer is C because life expectancy is influenced by multiple factors such as gender, ethnicity, and living environment. Gender does play a role, but it is not the sole determinant. Ethnicity and living environment also significantly impact life expectancy. Genetic factors may contribute, but they are not the primary factor affecting life expectancy. Therefore, choice C is the most comprehensive and accurate statement. Choices A and B are incorrect as they oversimplify the factors that influence life expectancy, while choice D is also incorrect as it overlooks the significant impact of other factors beyond genetics.

Correct Answer: A

Rationale: The correct answer is A: Role theory. Role theory suggests that individuals continue to seek fulfilling roles and activities in older age to maintain a sense of purpose and identity. In this scenario, the older woman's transition from a career as a school principal to volunteering at the library aligns with the idea of seeking meaningful roles. B: Disengagement theory posits that older adults withdraw from society as they age, which contradicts the woman's active engagement in volunteering. C: Age-stratification theory focuses on how age influences opportunities and constraints within society, not on individual choices like volunteering. D: Social exchange theory emphasizes reciprocal relationships and benefits gained from social interactions, which is not the primary focus in this scenario.