Nursing Elites

1. Select the meaning of the word 'intact' in the sentence: 'It is important that the bandage remain intact.'

• A. Dry
• B. Whole
• C. Uncovered
• D. Secure

Correct answer: B

Rationale: The correct answer is 'B: Whole'. In this context, 'intact' means undisturbed or whole, referring to the bandage being complete and not damaged. Choice A, 'Dry', is incorrect as it does not reflect the meaning of 'intact' in this sentence. Choice C, 'Uncovered', is also incorrect as 'intact' does not imply uncovered but rather complete. Choice D, 'Secure', is not the best fit as 'intact' in this context emphasizes the undamaged or whole nature of the bandage.

2. All of the following are mentioned in the passage as potential risks from inadequate sleep EXCEPT ___________.

• A. Cancer
• B. Obesity
• C. Diabetes
• D. Depression

Correct answer: A

Rationale: Cancer is not mentioned as a risk associated with inadequate sleep in the passage.

3. Which of these intermolecular forces would result in the lowest boiling point?

• A. Dipole-dipole interaction
• B. London dispersion force
• C. Keesom interaction
• D. Hydrogen bonding

Correct answer: B

Rationale: The London dispersion force is the weakest intermolecular force among the options provided. These forces are present in all molecules and are caused by temporary fluctuations in electron density, resulting in temporary dipoles. Since London dispersion forces are generally weaker than dipole-dipole interactions, Keesom interactions, and hydrogen bonding, a substance with London dispersion forces as the primary intermolecular force would have the lowest boiling point due to the weaker intermolecular forces holding the molecules together. Dipole-dipole interactions, Keesom interactions, and hydrogen bonding are stronger intermolecular forces compared to London dispersion forces, resulting in higher boiling points for substances that exhibit these interactions.

4. Select the option that best shows complementary base pairing in DNA:

• A. A and G
• B. A and C
• C. A and A
• D. A and T

Correct answer: D

Rationale: The correct answer is D. A purine (A) must pair with a pyrimidine (T) in DNA. This eliminates options A and C as they do not follow the rule of complementary base pairing. Adenine (A) always pairs with thymine (T) due to their specific shape and bonding properties in DNA structure. Choice B is incorrect because adenine does not pair with cytosine in DNA.

5. The quality, safety, and efficacy of the new medicines are not known. What does efficacy mean?

• A. Cost
• B. Effectiveness
• C. Quality
• D. Usage

Correct answer: B

Rationale: Efficacy refers to how effective something is. In this context, it refers to the effectiveness of the new medicines. 'Cost' (Choice A) is incorrect as it relates to the price of something, not its effectiveness. 'Quality' (Choice C) is incorrect as it refers to the standard or degree of excellence. 'Usage' (Choice D) is incorrect as it refers to how something is used, not its effectiveness.

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