Correct Answer: D

Rationale: The correct answer is "It looks like I have a blank spot in the middle of what I'm trying to see." Seeing blank spots in the middle of an object is a sign of central vision loss, which is a symptom of macular degeneration. Macular degeneration is a serious condition that requires immediate discussion with a healthcare provider to prevent further vision loss. Choice A, mentioning difficulty adjusting between bright and dark rooms, is a common issue related to changes in lighting and not a cause for immediate concern. Choice B, having to hold objects farther away when reading, is indicative of presbyopia, a normal age-related change in vision. Choice C, experiencing slight changes in color perception, is also a common age-related change and not an urgent issue that necessitates immediate discussion with a healthcare provider.

Correct Answer: A

Rationale: The correct way to position a client's neck for palpation of the thyroid is to have it flexed toward the side being examined. This positioning helps to better access and palpate the thyroid gland. Option B, hyperextending the neck directly backward, is incorrect as it can make palpation more difficult and uncomfortable for the client. Option C, flexing the neck away from the side being examined, is also incorrect as it may obscure the thyroid gland, making it harder to palpate. Option D, flexing the neck directly forward, is not ideal for thyroid palpation as it does not provide the best access to the gland.

Correct Answer: A

Rationale: The correct answer is 'A loss of melanin occurs in the normal aging process.' Graying hair in older adults is primarily due to a decrease in the number of melanocytes responsible for providing pigment and hair color. This reduction in melanin production leads to gray hair. The other choices are incorrect. While it is true that the skin becomes thinner with aging and the number of sweat glands and blood vessels decreases, these changes are not directly related to graying hair. Additionally, hereditary factors can influence when graying starts, but they do not cause the graying of hair itself.

Correct Answer: B

Rationale: The correct answer is 'Aunts, uncles, grandparents, and cousins.' When gathering medical history from the client's extended family, it is essential to inquire about relatives beyond the nuclear family, such as aunts, uncles, grandparents, and cousins, as they share genetic and environmental influences. Choice C, 'Wife's children from a previous marriage,' pertains to stepchildren, not extended family members. Choice B, 'Foster children and their parents,' involves individuals who are not biologically related to the client's family. Choice D, 'Wife and wife's parents,' focuses solely on immediate family members and excludes the client's extended family members, which are crucial for a comprehensive health assessment.

Correct Answer: C

Rationale: The correct answer is 'Decreased older client's ability to clear secretions.' Respiratory changes related to the normal aging process decrease an older adult's ability to clear secretions and protect the airway. In healthy older adults, the number of alveoli does not change significantly; their structure, however, is altered. Respiratory system compliance decreases with advancing age because of a progressive loss of elastic recoil of the lung parenchyma and conducting airways, and reduced elastic recoil of the lung and opposing forces of the chest wall. Production of surfactant in the lung does not usually decrease with aging, nor does it increase. However, the production of alveolar cells responsible for surfactant production is diminished. Choices A, B, and D are incorrect. Choice A is incorrect because respiratory system compliance decreases with aging. Choice B is incorrect as the number of alveoli does not significantly decrease in healthy older adults. Choice D is incorrect as the production of surfactant does not usually decrease with aging.