Nursing Elites

1. What are the three steps of the 'wave of excitation'?

• A. The discharge from the SA node, the peak ECG, and the excitement of the ventricle.
• B. The excitement of the ventricle, the relaxing of the ventricle, and the systemic neural response.
• C. The contraction of the atrium, the relaxation of the atrium, and the contraction of the ventricle.
• D. The excitation of the atrium, the excitement of the ventricle, and the relaxing of the ventricle.

Correct answer: D

Rationale: The correct steps of the 'wave of excitation' are the excitation of the atrium, excitement of the ventricle, and relaxation of the ventricle. In the described process, the 'wave of excitation' starts with the discharge from the SA node, leading to the excitation of the atrium. Next, the peak ECG corresponds to the excitement of the ventricle, not its relaxation. Finally, the wave concludes with the relaxation of the ventricle, not its contraction. Therefore, choices A, B, and C are incorrect as they do not accurately describe the sequential steps of the 'wave of excitation' as presented in the extract.

2. What statement from the article draws a conclusion?

• A. Chopsticks can be hard to use.
• B. Eating with cutlery was invented in Europe.
• C. It is interesting to discover new ways to do things.
• D. Space travel has created new challenges for eating.

Correct answer: C

Rationale: The correct answer is C: 'It is interesting to discover new ways to do things.' This statement draws a conclusion by summarizing the learning experience mentioned throughout the article. It reflects on the diversity of eating habits across cultures and the fascination in discovering and adapting to new methods of accomplishing tasks. Choice A is incorrect as it describes a fact rather than drawing a conclusion. Choice B is incorrect as it also presents a historical fact without concluding or summarizing any information. Choice D is incorrect because it states a fact about the challenges of space travel without offering a concluding remark or summarizing the topic.

3. What is the meaning of the word 'pathogens' as it is used in the first paragraph?

• A. diseases
• B. vaccines
• C. disease-causing substances
• D. foods

Correct answer: C

Rationale: In the context provided, 'pathogens' refers to disease-causing substances such as bacteria and viruses. These microorganisms can contaminate food and lead to foodborne illnesses. Choice A ('diseases') is incorrect as pathogens themselves cause diseases but are not diseases. Choice B ('vaccines') is incorrect as vaccines are used to prevent diseases caused by pathogens. Choice D ('foods') is incorrect as pathogens are not foods, but rather contaminants that can be found in food.

4. What is the meaning of the word exposed as used in the first paragraph about Toxins and Your Health?

• A. Uncovered.
• B. Subjected.
• C. Visible.
• D. Divulged.

Correct answer: B

Rationale: In the context of the passage, "exposed" means to be subjected to harmful elements. It suggests vulnerability to these toxins, which can lead to serious health issues later in life. The other options do not accurately capture the implications of "exposed" in relation to toxic substances, making B the correct choice.

5. What statement about global warming is made in the passage on the Amazon Rainforest?

• A. Global warming is caused by deforestation.
• B. Global warming is unrelated to deforestation.
• C. Global warming is exaggerated.
• D. Global warming is not a concern.

Correct answer: A

Rationale: The correct statement about global warming in the passage on the Amazon Rainforest is that it is caused by deforestation. The passage explains that cutting down trees in the rainforest increases the amount of carbon dioxide in the air, leading to global warming. This is supported by the fact that the burning of Brazilian rainforests alone produces 200 million metric tons of carbon dioxide a year. Choice B is incorrect as the passage clearly establishes a direct link between deforestation and global warming. Choice C is incorrect as the passage does not suggest that global warming is exaggerated, but rather highlights the harmful effects of deforestation. Choice D is incorrect as the passage emphasizes the serious concern of global warming due to deforestation.

Similar Questions