Nursing Elites

1. What causes an older female client's hair to turn gray?

• A. ''A loss of melanin occurs in the normal aging process.''
• B. ''The number of sweat glands and blood vessels decreases in the normal aging process.''
• C. ''The skin on the scalp becomes thin, causing moisture to escape.''
• D. ''It is caused by hereditary factors.''

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.

2. A nurse reviewing a client's record notes that the result of the client's latest Snellen chart vision test was 20/80. The nurse interprets the client's results in which way?

• A. The client is legally blind.
• B. The client has normal vision.
• C. The client can read at a distance of 20 feet what a client with normal vision can read at 80 feet.
• D. The client can read at a distance of 80 feet what a client with normal vision can read at 20 feet.

Correct answer: D

Rationale: When interpreting visual acuity testing results using the Snellen chart, the recorded numeric fraction represents the distance the client is standing from the chart and the distance a normal eye could read that particular line. A reading of 20/80 means that the client can read at 20 feet what a client with normal vision can read at 80 feet. This indicates visual impairment but does not meet the criteria for legal blindness, which is defined as best-corrected vision in the better eye of 20/200 or worse. Normal visual acuity is 20/20. Therefore, the correct interpretation is that the client can read at a distance of 80 feet what a client with normal vision can read at 20 feet. Choice A is incorrect because 20/80 does not meet the criteria for legal blindness. Choice B is incorrect as the client's vision is impaired. Choice C is incorrect because it reverses the interpretation of the fraction.

3. An amniocentesis is scheduled for a pregnant client in the third trimester. The nurse informs the client that the most common indication for amniocentesis during the third trimester is for which reason?

• A. Determination of whether alpha-fetoprotein (AFP) is present in the amniotic fluid
• B. Checking the amniotic fluid for intrauterine infection
• C. Determination of fetal lung maturity
• D. Checking the fetal cells for chromosomal abnormalities

Correct answer: C

Rationale: The most common indication for amniocentesis in the third trimester is the determination of fetal lung maturity. This assessment is essential to evaluate the fetus's readiness for extrauterine life. Checking for alpha-fetoprotein (AFP) in the amniotic fluid is more commonly associated with midtrimester amniocentesis to identify chromosomal abnormalities. Assessing for intrauterine infection is not a primary reason for amniocentesis in the third trimester. While checking fetal cells for chromosomal abnormalities is a common indication for midtrimester amniocentesis, it is not the most common indication in the third trimester.

4. When assisting with data collection on language development in a toddler from a bilingual family, what characteristic would a nurse expect?

• A. Is more advanced than expected
• B. Is developing as expected
• C. Is slower than expected
• D. Will require assistance from a speech therapist

Correct answer: C

Rationale: When assessing language development in a toddler from a bilingual family, a nurse would expect the child's language development to be slower than expected. Various factors, such as physical maturity and reinforcement received, can influence the pace of language development. Children from bilingual families, twins, and non-firstborn children may exhibit slower language development. Therefore, it is common for the language development of a toddler from a bilingual family to be slower than expected. This characteristic does not necessarily imply a need for speech therapy. Choices A, B, and D are incorrect because, in this context, the language development of the child is more likely to be slower than expected rather than more advanced, developing as expected, or requiring speech therapy.

5. When performing the confrontation test to assess peripheral vision, what action should the nurse take?

• A. Asks the client to identify a small object brought into the visual field
• B. Has the client cover one eye while the nurse covers one eye and slowly advances a target midline between them
• C. Covers one eye, while the client covers the opposite eye, and brings a small object into the visual field
• D. Positions at eye level with the client, covers one eye, and has the client cover the opposite eye, then brings a small object into the visual field

Correct answer: D

Rationale: When performing the confrontation test to assess peripheral vision, the nurse should position at eye level with the client, cover one eye, and have the client cover the opposite eye. This approach allows the examiner to bring a small object into the visual field to evaluate the client's peripheral vision. The test aims to compare the client's peripheral vision with the examiner's vision to identify any visual field deficits. Choices A, B, and C are incorrect. Choice A pertains to testing color vision, which is not part of the confrontation test. Choice B describes a different procedure that involves advancing a target midline between the client and examiner, not the correct approach for the confrontation test. Choice C is inaccurate as it fails to include the essential step of positioning at eye level with the client, making it an incorrect representation of the confrontation test.

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