Nursing Elites

1. How does the amplitude of a wave relate to its intensity or loudness?

• A. They are inversely proportional.
• B. They are directly proportional.
• C. They have no relationship.
• D. Amplitude affects frequency, not intensity.

Correct answer: B

Rationale: The amplitude of a wave is directly related to its intensity or loudness. In general, the larger the amplitude of a wave, the greater its intensity or loudness. This relationship is due to the fact that the amplitude of a wave represents the maximum displacement of particles in the medium from their rest position. The greater the displacement, the more energy the wave carries, leading to higher intensity or louder sound. Choice A is incorrect because the relationship between amplitude and intensity is direct, not inverse. Choice C is incorrect as there is a clear relationship between amplitude and intensity. Choice D is incorrect as amplitude primarily affects intensity or loudness, not frequency.

2. How should the following clauses be connected: 'He ate a lot on vacation. He did not gain any weight.'

• A. He ate a lot on vacation if he did not gain any weight.
• B. He ate a lot on vacation, but he did not gain any weight.
• C. He ate a lot on vacation since he did not gain any weight.
• D. He ate a lot on vacation because he did not gain any weight.

Correct answer: B

Rationale: The correct answer is B, 'He ate a lot on vacation, but he did not gain any weight.' The conjunction 'but' is used to show a contrast between the two clauses. Choices A, C, and D do not effectively demonstrate the contrast between eating a lot and not gaining weight, making them incorrect. Choice A introduces a conditional relationship that is not present in the original sentences. Choice C implies a causal relationship that is not intended. Choice D also suggests a causal link that is not appropriate given the context.

3. What text feature does the author use to organize the passage?

• A. headings and subheadings
• B. superscripts
• C. diagrams
• D. labels and footnotes

Correct answer: A

Rationale: Headings and subheadings are commonly used text features that help organize a passage by signaling different sections or topics. In this case, the passage is organized with clear headings such as 'Dairy: Beverage,' 'Dairy: Meals,' 'Dairy: Snack,' and 'Dairy: Dessert.' These headings provide a structured layout, making it easier for readers to identify specific information within each category. Superscripts, diagrams, and labels and footnotes are not used in this passage for organizing content, making them incorrect choices.

4. Which of the following conditions is characterized by a high percentage of CO2 and a very low percentage of O2 in the blood?

• A. Asphyxia
• B. Emphysema
• C. Eupnea
• D. Hypoxia

Correct answer: A

Rationale: Asphyxia is the correct answer as it refers to a condition with high CO2 and low O2 levels in the blood. Asphyxia can result in oxygen deprivation and excess carbon dioxide in the bloodstream, posing a life-threatening situation if not treated promptly. Emphysema is a chronic lung disease characterized by the damage to the air sacs in the lungs, leading to breathing difficulties. Eupnea denotes normal breathing without any abnormalities. Hypoxia, on the other hand, involves low oxygen levels reaching the body's tissues, which can result from various causes such as reduced oxygen in the air or respiratory issues.

5. What is the largest part of the brain and is responsible for higher functions like thinking, memory, and learning?

• A. Brainstem
• B. Cerebellum
• C. Cerebrum
• D. Thalamus

Correct answer: C

Rationale: The cerebrum is the correct answer. It is the largest part of the brain and is responsible for higher functions like thinking, memory, and learning. The brainstem (option A) is responsible for basic life functions such as breathing and heart rate, not higher cognitive functions. The cerebellum (option B) is responsible for coordination and balance, not higher cognitive functions. The thalamus (option D) acts as a relay station for sensory information, but it is not the largest part of the brain nor responsible for higher cognitive functions.

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