Nursing Elites

1. In the scientific method, a tentative solution to a problem is called a what?

• A. theory
• B. prediction
• C. hypothesis
• D. correlation

Correct answer: C

Rationale: In the scientific method, a hypothesis is a tentative solution or educated guess that is tested through research. A theory (choice A) is a well-substantiated explanation based on evidence and extensive testing. A prediction (choice B) is a statement about what will happen in the future based on existing knowledge. Correlation (choice D) refers to a mutual relationship between two or more things, indicating how they may change together but not providing a solution to a problem.

2. What is the smallest amount of a nutrient that, when consumed over a prolonged period, maintains a specific function?

• A. nutrient allowance
• B. nutrient requirement
• C. nutrient tolerable limit
• D. nutrient adequate intake

Correct answer: B

Rationale: The correct answer is 'B: nutrient requirement.' The nutrient requirement refers to the smallest amount of a nutrient that, when consumed over a prolonged period, maintains a specific function in the body. This amount ensures the body's optimal functioning and health. Choice A, 'nutrient allowance,' is incorrect as it does not specifically refer to the minimum amount needed for bodily functions but rather suggests a broader term. Choice C, 'nutrient tolerable limit,' is incorrect as it pertains to the maximum amount of a nutrient that can be consumed without adverse effects. Choice D, 'nutrient adequate intake,' is incorrect as it refers to the recommended average daily intake level of a nutrient to meet the requirements of most healthy individuals.

3. How should pain be assessed in a nonverbal child?

• A. Ask the parents about the child’s usual behavior
• B. Observe the child’s facial expressions and body movements
• C. Measure the child’s blood pressure
• D. Use a pain rating scale for older children

Correct answer: B

Rationale: Observing the nonverbal child's facial expressions and body movements is crucial in assessing pain. Nonverbal children may not be able to communicate their discomfort verbally, making it essential to rely on physical cues. Asking parents about the child's usual behavior (choice A) may provide some insight but observing the child directly is more direct and reliable. Measuring blood pressure (choice C) is not typically a direct method for assessing pain in nonverbal children. Using a pain rating scale designed for older children (choice D) is also inappropriate for nonverbal children who cannot participate in such self-reporting tools.

4. What is the most effective therapy for maintaining remission of acute lymphoblastic leukemia?

• A. Surgery to remove enlarged lymph nodes
• B. Long-term chemotherapy
• C. Nutritional supplements to enhance blood cell production
• D. Blood transfusions to replace ineffective red cells

Correct answer: B

Rationale: The correct answer is B: Long-term chemotherapy. Long-term chemotherapy, specifically with methotrexate, is the most effective therapy for maintaining remission in acute lymphoblastic leukemia. Surgery to remove enlarged lymph nodes (Choice A) is not the primary treatment for leukemia. Nutritional supplements (Choice C) may support overall health but are not the mainstay therapy for maintaining leukemia remission. Blood transfusions (Choice D) are used to address anemia in some cases but are not the primary treatment for maintaining remission in acute lymphoblastic leukemia.

5. 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.

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