Nursing Elites

1. 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.

2. An older client reports that she has been awakening during the night, awakes early in the morning and is unable to fall back to sleep, and feels sleepy during the daytime. Based on these reported data, what should the nurse do?

• A. Encourage the client to consume stimulants such as caffeinated coffee or tea during the daytime hours.
• B. Ask the registered nurse to obtain a prescription for a nighttime sedative.
• C. Report the findings to the registered nurse.
• D. Document the findings in the medical record.

Correct answer: D

Rationale: Age-related changes in sleep include reduced sleep efficiency, increased incidence of nocturnal awakening, increased incidence of early-morning awakening, and increased daytime sleepiness. Since the reported data are normal age-related changes, the appropriate action for the nurse would be to document the findings in the medical record. Reporting the findings to the registered nurse is unnecessary as these changes are expected with aging and do not indicate a need for immediate intervention. Prescribing sedatives should be avoided as a first-line approach due to potential side effects and risks, especially in older adults. Encouraging the consumption of stimulants like caffeinated beverages during the daytime may further disrupt sleep patterns, which is counterproductive in addressing the client's reported sleep issues.

3. 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.

4. Which of the following vaccines contains a live virus?

• A. varicella
• B. IPV
• C. DTaP
• D. hepatitis B

Correct answer: A

Rationale: The correct answer is varicella. Varicella vaccine contains a live, weakened form of the varicella-zoster virus. Choice B, IPV (inactivated poliovirus vaccine), is an inactivated vaccine, not a live virus vaccine. Choices C and D, DTaP (diphtheria, tetanus, and acellular pertussis vaccine) and hepatitis B vaccine, respectively, do not contain live viruses. Varicella is the only live virus vaccine among the options.

5. A client is taught about healthy dietary measures and the MyPlate food plan. How many of his grains should be whole grains according to the MyPlate food plan?

• A. One-quarter
• B. One-third
• C. One-half
• D. Two-thirds

Correct answer: C

Rationale: The correct answer is 'One-half.' According to the MyPlate food plan, at least half of the grains consumed daily should be whole grains. This ensures a well-balanced and healthy diet. Choices A, B, and D are incorrect because they do not align with the dietary recommendation provided by the MyPlate food plan. One-quarter, one-third, and two-thirds do not represent the appropriate proportion of whole grains as advised by the plan, which emphasizes the importance of including a significant portion of whole grains in one's diet.

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