Nursing Elites

1. What is one benefit of using a large sample size in an experiment?

• A. Chance variation is less likely to affect the results.
• B. The possibility of a placebo effect is eliminated.
• C. The experiment will be double-blind.
• D. The control group will be similar to the experimental group.

Correct answer: A

Rationale: Corrected Rationale: Using a large sample size reduces the likelihood of chance variation affecting the results, providing more reliable data. Choice B is incorrect because the placebo effect is related to participants' beliefs, not sample size. Choice C is incorrect as double-blind refers to a method of reducing bias, not directly related to sample size. Choice D is incorrect because the similarity between the control and experimental groups is not solely dependent on sample size.

2. What is a common sign of dehydration in a child with diarrhea?

• A. Decreased urine output
• B. Increased appetite
• C. Warm, dry skin
• D. Elevated blood pressure

Correct answer: A

Rationale: The correct answer is A: Decreased urine output. When a child with diarrhea is dehydrated, they may have decreased urine output, indicating that their body is conserving fluids. This sign highlights the importance of fluid replacement to prevent worsening dehydration. Choices B, C, and D are incorrect. Increased appetite is not typically associated with dehydration but can be seen in other conditions. Warm, dry skin may be a sign of fever or other skin conditions, not specifically dehydration. Elevated blood pressure is not a common sign of dehydration in a child with diarrhea.

3. How does a double-blind experiment work?

• A. Both subject groups take turns receiving each treatment.
• B. Neither subjects nor researchers know which subjects are in the control or experimental group.
• C. Neither group of subjects knows whether they are in the control or experimental group, but the researchers do not know.
• D. Both subject groups know whether they are in the control or experimental group, but the researchers do not know.

Correct answer: B

Rationale: The correct answer is B. In a double-blind experiment, neither the subjects nor the researchers know which subjects are in the control or experimental group. This helps to eliminate bias and ensure that the results are more objective. Choice A is incorrect as in a double-blind experiment, subjects do not take turns receiving each treatment; it is about masking the treatment allocation. Choice C is incorrect because it implies that the researchers are aware of the group allocation, which goes against the principle of blinding in a double-blind study. Choice D is incorrect as both subject groups should not know whether they are in the control or experimental group to maintain the blindness of the study.

4. How should a healthcare professional manage a child with a newly inserted gastrostomy tube?

• A. Monitor for signs of infection
• B. Increase the child's fluid intake
• C. Restrict all oral intake
• D. Use only sterile equipment for feedings

Correct answer: A

Rationale: Monitoring for signs of infection at the gastrostomy site is crucial for ensuring proper care and preventing complications. This involves observing for redness, swelling, warmth, or drainage around the insertion site. Increasing the child's fluid intake (Choice B) may be beneficial for hydration but is not specifically related to managing a newly inserted gastrostomy tube. Restricting all oral intake (Choice C) is not necessary as long as the healthcare professional follows the recommended guidelines for feeding. While using sterile equipment for feedings (Choice D) is important, monitoring for signs of infection takes precedence in the immediate post-insertion period.

5. What is the result of the metabolism of energy nutrients?

• A. Energy is released.
• B. Body fat increases.
• C. Energy is destroyed.
• D. Body water decreases.

Correct answer: A

Rationale: The correct answer is A. Energy is released during the metabolism of energy nutrients. This released energy is utilized by the body for various functions. Choice B is incorrect because the metabolism of energy nutrients does not directly result in an increase in body fat. Choice C is incorrect as energy is not destroyed but rather transformed and utilized by the body. Choice D is incorrect as the metabolism of energy nutrients does not lead to a decrease in body water.

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