Nursing Elites

1. While assisting with data collection regarding the neurological system, the nurse asks the client to puff out both cheeks. Which cranial nerve is the nurse assessing?

• A. Vagus
• B. Facial
• C. Abducens
• D. Oculomotor

Correct answer: B

Rationale: The correct answer is B: Facial. Assessment of cranial nerve VII (facial nerve) involves noting mobility and symmetry as the client performs various facial movements, including puffing out the cheeks. Cranial nerve IX (glossopharyngeal nerve) and cranial nerve X (vagus nerve) are tested together for different functions. The abducens, oculomotor, and trochlear nerves are assessed together for eye movements and pupil reactions, not cheek puffing.

2. 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.

3. What is the threshold of dextrose concentrations that can safely be administered through a peripheral IV?

• A. Dextrose concentrations below 20% can be safely administered through a peripheral IV; dextrose concentrations above 20% should not be administered through a peripheral IV.
• B. Dextrose concentrations below 5% can be safely administered through a peripheral IV; dextrose concentrations above 5% should not be administered through a peripheral IV.
• C. Dextrose concentrations below 10% can be safely administered through a peripheral IV; dextrose concentrations above 10% should not be administered through a peripheral IV.
• D. Dextrose concentrations above 5% can be safely administered through a peripheral IV; dextrose concentrations below 5% should not be administered through a peripheral IV.

Correct answer: C

Rationale: Dextrose concentrations below 10% are considered safe for administration through a peripheral IV, as concentrations above this threshold can lead to phlebitis, causing inflammation of the vein. Concentrations above 10% should not be administered through a peripheral IV to prevent vein irritation. Choice A is incorrect because concentrations above 20% are too high for a peripheral IV. Choice B is incorrect as dextrose concentrations below 5% are too low to be effective. Choice D is incorrect because the statement is reversed, suggesting that concentrations above 5% are safe, which is not true.

4. A middle-aged woman tells the nurse that she has been experiencing irregular menses for the past six months. The nurse should assess the woman for other symptoms of:

• A. climacteric
• B. menopause
• C. perimenopause
• D. postmenopause

Correct answer: C

Rationale: Perimenopause refers to a period in which hormonal changes occur gradually, ovarian function diminishes, and menses become irregular. It typically lasts around five years. In the case of the middle-aged woman experiencing irregular menses for six months, she aligns with perimenopause as it involves irregular menstrual cycles, one of the common symptoms during this transitional phase. Climacteric is a term describing the period of life with physiologic changes leading to the end of a woman's reproductive ability but not specifically characterized by irregular menses. Menopause marks the permanent cessation of menses and does not involve the transitional irregularities seen in perimenopause. Postmenopause is the phase after the completion of menopausal changes.

5. A healthcare professional reviewing the health care record of a client notes documentation of grade 4 muscle strength. The healthcare professional understands that this indicates:

• A. Full ROM with gravity
• B. Full ROM against gravity with full resistance
• C. Full ROM with gravity eliminated (passive motion)
• D. Full ROM against gravity with some resistance

Correct answer: D

Rationale: Muscle strength is graded on a scale of 0 to 5. A grade of 5 indicates normal strength and is described as full ROM against gravity with full resistance. Grade 4 indicates good strength and full ROM against gravity with some resistance. Grade 3 indicates fair strength and full ROM with gravity. Grade 2 indicates poor strength and full ROM with gravity eliminated (passive motion). Grade 1 indicates trace strength and slight contraction. Grade 0 indicates zero strength and no contraction. Therefore, the correct answer is 'Full ROM against gravity with some resistance.' Choices A, B, and C are incorrect as they do not match the description of muscle strength associated with a grade of 4.

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