Nursing Elites

1. What is the author’s primary purpose in writing the essay?

• A. To persuade the reader to have an ECG
• B. To entertain the reader with a heartwarming story
• C. To inform the reader how an electrocardiograph reads the electric currents emitted by the heart
• D. To analyze the difference between the SA node and the AV node

Correct answer: C

Rationale: The author's primary purpose in writing the essay is to inform the reader about how an electrocardiograph reads the electric currents emitted by the heart. Choice A is incorrect because there is no attempt to persuade the reader to have an ECG. Choice B is incorrect because the essay is focused on providing information rather than entertaining with a heartwarming story. Choice D is incorrect as the essay does not primarily analyze the difference between the SA node and the AV node; instead, it focuses on explaining how an electrocardiograph reads electric currents from the heart.

2. Which sound waves have a lower pitch?

• A. Those waves that are closer together
• B. Those waves that are farther apart
• C. Those waves that travel a long distance
• D. Those waves that travel a short distance

Correct answer: B

Rationale: Sound waves that are farther apart have a lower pitch. The Doppler Effect explains that as objects emitting sound move away, the sound waves become more spaced out, resulting in a lower frequency and a lower pitch. Choice A is incorrect because waves that are closer together have a higher frequency and a higher pitch. Choices C and D are not directly related to determining the pitch of sound waves.

3. What is the meaning of the word 'admonition' as used in the last paragraph?

• A. Permission
• B. Prescription
• C. Caution
• D. Verdict

Correct answer: C

Rationale: In this context, 'admonition' means a caution or warning, not permission, prescription, or verdict. The excerpt mentions that along with advising the elderly to move slowly and carefully, the CDC also recommends gentle exercise or physical therapy to strengthen muscles and improve balance. This advice aims to reduce the risk of falls and boost the self-esteem of older adults. Therefore, 'admonition' here refers to a precautionary counsel rather than granting permission, prescribing a treatment, or giving a verdict.

4. What is the meaning of the word 'composed' in the first paragraph?

• A. To consist of
• B. To be uniquely discovered
• C. To be set apart
• D. To be surprised

Correct answer: A

Rationale: In the context provided, 'composed' means to consist of. The paragraph explains that a drop of water is composed of an oxygen atom and two hydrogen atoms. Therefore, the correct answer is A. Choice B, 'To be uniquely discovered,' is incorrect as it does not relate to the composition of a drop of water. Choice C, 'To be set apart,' and Choice D, 'To be surprised,' are also incorrect as they do not convey the meaning of 'composed' as it is used in this paragraph.

5. What statement about jetlag can be inferred from the passage on Daylight Savings Time?

• A. Jetlag is caused by flying at high speeds.
• B. Jetlag is caused by moving between time zones.
• C. Jetlag is unrelated to time zone changes.
• D. Jetlag is a myth.

Correct answer: B

Rationale: The correct answer is B: 'Jetlag is caused by moving between time zones.' The passage explains that jetlag occurs when moving suddenly from one time zone to another, such as when flying from Asia to North America. This disrupts the body's internal clock, leading to symptoms like tiredness and sleep disturbances. Choice A is incorrect as jetlag is not attributed to high-speed travel but to time zone changes. Choice C is incorrect as the passage clearly links jetlag to changes in time zones. Choice D is incorrect as jetlag is a real phenomenon experienced by individuals who travel across different time zones.

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