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. An essential nutrient is one that ___

• A. must be made in large quantities by the body
• B. can only be synthesized by the body
• C. cannot be made in sufficient quantities by the body
• D. is used to synthesize other compounds in the body

Correct answer: C

Rationale: An essential nutrient is a substance that cannot be made in sufficient quantities by the body itself, so it must be obtained from the diet. Choice A is incorrect because essential nutrients are required in specific amounts, not necessarily large quantities. Choice B is incorrect as essential nutrients cannot be synthesized by the body at all. Choice D is incorrect because although essential nutrients may be used in the synthesis of other compounds, that is not the defining characteristic of an essential nutrient.

3. What is an important consideration when administering medications to a child with a history of chronic renal failure?

• A. Increased frequency of medication administration
• B. Adjustments in dosage due to altered drug metabolism
• C. Avoidance of all medications
• D. Use of only intravenous medications

Correct answer: B

Rationale: When administering medications to a child with chronic renal failure, it is crucial to consider adjustments in dosage due to altered drug metabolism. Children with chronic renal failure may have impaired drug excretion, leading to potential drug accumulation and toxicity. Increasing the frequency of medication administration (choice A) may not address the altered drug metabolism issue and could increase the risk of adverse effects. Avoiding all medications (choice C) is not practical or safe as some medications may be necessary for the child's health. Using only intravenous medications (choice D) is not always required and may not be the best route of administration for all medications needed.

4. What is a common symptom of congenital heart disease in infants?

• A. Excessive weight gain
• B. Difficulty breathing
• C. High blood pressure
• D. Increased appetite

Correct answer: B

Rationale: Difficulty breathing is a common symptom of congenital heart disease in infants. Infants with congenital heart disease may experience difficulty breathing due to impaired cardiac function, which affects the heart's ability to pump blood effectively. This symptom is often due to issues like heart failure or fluid accumulation in the lungs. Excessive weight gain (Choice A) is not typically associated with congenital heart disease in infants. High blood pressure (Choice C) is less common in infants with congenital heart disease compared to adults. Increased appetite (Choice D) is not a typical symptom of congenital heart disease in infants.

5. In what units are energy measurements expressed by most scientists and nutritionists outside the United States?

• A. newtons
• B. liters
• C. kilojoules
• D. kilocalories

Correct answer: C

Rationale: Kilojoules are the standard units of energy used by most scientists and nutritionists worldwide. Newtons are units of force, liters are units of volume, and kilocalories are more commonly used in the United States but not as widely adopted internationally for energy measurements. Therefore, the correct answer is 'kilojoules.'

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