Nursing Elites

1. Which of the following blood vessels carries oxygenated blood from the lungs back to the left atrium of the heart?

• A. Pulmonary artery
• B. Pulmonary vein
• C. Aorta
• D. Inferior vena cava

Correct answer: B

Rationale: The correct answer is B: Pulmonary vein. The pulmonary vein carries oxygenated blood from the lungs back to the left atrium of the heart. This oxygenated blood is then pumped out to the rest of the body. The pulmonary artery, choice A, carries deoxygenated blood from the heart to the lungs for oxygenation. The aorta, choice C, is responsible for carrying oxygenated blood from the heart to the body's tissues. Choice D, the inferior vena cava, transports deoxygenated blood from the lower body back to the heart.

2. Which of the following suffixes would change the verb 'manage' into an adjective?

• A. -ed
• B. -ible
• C. -able
• D. -er

Correct answer: C

Rationale: The correct suffix to change the verb 'manage' into an adjective is '-able.' When added to 'manage,' it forms the adjective 'manageable,' which means capable of being managed. Choice A ('-ed') is a past participle suffix, not an adjective-forming suffix. Choice B ('-ible') is used to form adjectives meaning 'capable of' but is not the correct choice in this context. Choice D ('-er') is typically used to form agent nouns rather than adjectives.

3. Which of the following choices would be the best beginning for an essay titled “Scientists Debate: Global Climate Change”?

• A. The Earth is heating up. The polar ice caps are melting, and whole species are going extinct while governments and scientists argue over rules and regulations.
• B. The argument seems to be about whether climate change is really happening and if so, who causes it. Some scientists argue that people are causing the change.
• C. If the Earth heats up, what will our new world look like? Scientists who have dedicated their lives to understanding climate change have projected a series of scenarios that could happen.
• D. While few people can understand all of the issues related to climate change, one thing is sure: scientists do not agree. There seem to be several different views on how to look at climate change data.

Correct answer: C

Rationale: Choice C would be the best beginning for an essay on 'Scientists Debate: Global Climate Change' because it sets the stage for discussion by introducing the potential consequences of Earth heating up and inviting readers to consider the implications. It also highlights the expertise of scientists who have dedicated their lives to understanding climate change, positioning them as credible sources for further discussion on the topic. The other choices either focus on the existing debate without providing a broader context (A and D) or present a narrow view on whether climate change is real and human-caused (B) without delving into the broader implications and discussions within the scientific community.

4. How does lymph move through the lymphatic vessels?

• A. By the pumping action of the heart
• B. Due to muscle contractions and breathing movements
• C. Through one-way valves within the vessels
• D. All of the above

Correct answer: C

Rationale: Lymph moves through the lymphatic vessels due to the presence of one-way valves within the vessels. These valves prevent the backflow of lymph and help propel the fluid forward as muscles contract and relax or due to breathing movements. Unlike blood circulation, the lymphatic system does not rely on the pumping action of the heart to move lymph. Choice A is incorrect because lymphatic circulation does not depend on the pumping action of the heart. Choice B is partly correct as muscle contractions and breathing movements do assist in propelling lymph, but the primary mechanism is the presence of one-way valves within the vessels, making choice C the most accurate answer. Choice D is incorrect as not all options listed contribute to how lymph moves through the lymphatic vessels.

5. Where is fat primarily digested, and where is protein primarily digested?

• A. Mouth; stomach
• B. Stomach; small intestine
• C. Small intestine; small intestine
• D. Small intestine; stomach

Correct answer: B

Rationale: The correct answer is B. Fats are primarily digested in the small intestine, where bile from the liver emulsifies fats for enzymatic digestion. The small intestine is where most of the absorption of nutrients occurs. Proteins, on the other hand, are mainly digested in the stomach by the enzyme pepsin under acidic conditions. The stomach's acidic environment helps denature proteins, making them more accessible to pepsin for digestion. Choices A, C, and D are incorrect because they do not accurately reflect the primary sites of fat and protein digestion in the human digestive system.

Similar Questions