Nursing Elites

1. What conclusion can the reader draw after reading the passage about The Sleep Workout?

• A. Getting uninterrupted sleep is more important than getting enough sleep.
• B. Insufficient sleep may result in an increased risk for obesity.
• C. Human growth hormone is not essential for muscle development.
• D. Leptin is essential for building muscle.

Correct answer: B

Rationale: The correct answer is B because the passage highlights that insufficient sleep could lead to an increased risk of obesity. The passage emphasizes the importance of uninterrupted sleep in muscle development and mentions that inadequate sleep is linked to lowered levels of leptin, a hormone that controls appetite. This imbalance in leptin due to lack of sleep can lead to increased cravings for carbohydrates, contributing to obesity. Choice A is incorrect as the passage stresses the significance of both uninterrupted sleep and getting enough sleep for muscle growth. Choice C is incorrect because the passage clearly states that human growth hormone (HGH) is essential for muscle development. Choice D is incorrect as leptin is not essential for building muscle but is mentioned in the passage as a hormone related to controlling appetite and its link to inadequate sleep and obesity.

2. What is the author's primary purpose for writing the passage on the Amazon Rainforest?

• A. To entertain readers with facts about the rainforest.
• B. To inform readers about the deforestation of the Amazon.
• C. To persuade readers to visit the Amazon Rainforest.
• D. To criticize the farming practices in the Amazon.

Correct answer: B

Rationale: The author's primary purpose for writing the passage on the Amazon Rainforest is to inform readers about the deforestation and environmental challenges facing the Amazon. The passage provides detailed information about the Amazon Rainforest, its biodiversity, the impact of deforestation on the environment, and the dangers associated with the destruction of the rainforest. Choice A is incorrect because the author's goal is not to entertain but to educate readers. Choice C is incorrect as there is no persuasive language used to encourage readers to visit the Amazon Rainforest. Choice D is also incorrect as the passage does not focus on criticizing farming practices but rather on highlighting the environmental threats and consequences of deforestation.

3. Which of the following is not mentioned as a detail in the passage about Sickle-Cell Anemia?

• A. People of South American or African descent may be prone to sickle-cell anemia.
• B. Symptoms of sickle-cell anemia may include sudden occurrences of extreme abdominal and back pain.
• C. The red blood cells of sickle-cell patients are unusually shaped, forming crescent or sickle shapes.
• D. Vitamin and mineral deficiencies may result in some anemia.

Correct answer: D

Rationale: The correct answer is D because the passage does not mention anything about vitamin and mineral deficiencies in relation to sickle-cell anemia. Choice A is incorrect as the passage specifies that sickle-cell anemia is more common among people of South American or African descent. Choice B is correct as the passage states that symptoms of sickle-cell anemia can include sudden occurrences of extreme abdominal and back pain. Choice C is correct as the passage describes that the red blood cells of sickle-cell patients are unusually shaped, forming crescent or sickle shapes. The passage does not discuss any relationship between vitamin and mineral deficiencies and sickle-cell anemia, making choice D the correct option.

4. 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.

5. 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.

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