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.

Correct Answer: A

Rationale: The correct answer is A: The National Gerontological Nursing Association (NGNA). NGNA welcomes nurses from all educational backgrounds, focusing on gerontological nursing practice. The other choices have specific focuses: B is for nurse practitioners, C is for directors of nursing administration, and D is for professionals in the field of aging. NGNA's inclusivity makes it the correct choice for nurses from all educational backgrounds interested in gerontological nursing.

Correct Answer: A

Rationale: The correct answer is A because it accurately reflects the multifactorial nature of diabetes in older adults. Age-related changes, coupled with lifestyle factors like poor diet and lack of exercise, contribute to the high incidence of diabetes in this population. This statement acknowledges the complexity of diabetes in older adults. B is incorrect because while nurses should have knowledge about diabetes in older adults, the statement does not specifically address the multifactorial nature of the disease in this population. C is incorrect because ethnicity can indeed play a role in diabetes risk and should not be dismissed outright. D is incorrect because the development of diabetes is not considered a normal age-related change; it is a medical condition that can be influenced by various factors.

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: C

Rationale: The correct answer is C: sleep apnea. Sleep apnea is a sleep disorder characterized by pauses in breathing during sleep, which does not directly cause pneumonia. Aspiration from a poor swallow (A), community acquired pneumonia (B), and compromised immune function (D) are all known risk factors for pneumonia in older adults. Aspiration can lead to the entry of bacteria into the lungs, community-acquired pneumonia is a common cause of infection in the elderly, and compromised immune function makes older adults more susceptible to infections. Thus, sleep apnea is the only option that does not directly contribute to the development of pneumonia in older clients.