Nursing Elites

1. What is the term for the pressure exerted by blood against the walls of blood vessels?

• A. Heart rate
• B. Blood pressure
• C. Cardiac output
• D. Stroke volume

Correct answer: B

Rationale: Blood pressure is the term for the pressure exerted by blood against the walls of blood vessels. It is measured in millimeters of mercury (mmHg) and consists of two numbers: systolic pressure (the top number) and diastolic pressure (the bottom number). Heart rate (A) is the number of times the heart beats per minute, cardiac output (C) is the volume of blood pumped by the heart per minute, and stroke volume (D) is the volume of blood pumped by the heart in one contraction. Understanding blood pressure is crucial in assessing cardiovascular health and the risk of various conditions like hypertension.

2. What is the structure and function of elastic arteries?

• A. They are the smallest arteries and constrict and dilate frequently.
• B. They are medium-sized arteries that distribute blood to various organs.
• C. They are the largest arteries and stretch and recoil to accommodate blood pressure changes.
• D. They are thin-walled arteries that supply blood to the capillaries.

Correct answer: C

Rationale: The corrected answer is C. Elastic arteries, like the aorta, are the largest arteries in the body. They possess elastic fibers in their walls, allowing them to stretch and recoil in response to the pulsatile nature of blood flow from the heart. This elasticity helps to maintain blood pressure by absorbing the pressure waves generated by the heart's contractions and ensuring continuous blood flow to the organs. Choices A, B, and D are incorrect because elastic arteries are not the smallest arteries, do not constrict and dilate frequently, are not medium-sized arteries for distributing blood to various organs, and are not thin-walled arteries supplying blood to capillaries. Elastic arteries have a specific structure and function related to their ability to accommodate blood pressure changes due to their elastic properties, which is essential for the cardiovascular system's proper functioning.

3. In the phrase 'a drop in the bucket,' what does 'bucket' represent?

• A. A literal container
• B. A large quantity
• C. A specific goal
• D. An obstacle

Correct answer: B

Rationale: The phrase 'a drop in the bucket' is an idiom that means a very small or insignificant amount in comparison to a much larger total. In this context, 'bucket' symbolizes a large quantity, emphasizing the idea that the 'drop' is minimal or inconsequential when considering the overall amount. Choice A, 'A literal container,' is incorrect as 'bucket' in this phrase is not meant to be taken literally but rather symbolically. Choice C, 'A specific goal,' is incorrect as the phrase does not refer to achieving a specific target. Choice D, 'An obstacle,' is incorrect as 'bucket' is not presented as a hindrance or barrier in this idiom.

4. Eventually, he stopped hiding the fact that he did not know Spanish and admitted that he had been deceiving them for months. Which of the following words is misspelled in the sentence above?

• A. hiding
• B. admitted
• C. deceiving
• D. eventually

Correct answer: B

Rationale: The correct answer is 'B' – 'admitted'. The word 'admited' is misspelled; the correct spelling is 'admitted.' 'Hiding,' 'deceiving,' and 'eventually' are all spelled correctly in the sentence provided. 'Hiding' is the action of concealing something, 'deceiving' is the act of causing someone to believe something that is not true, and 'eventually' means at some later time or in the end. These words are correctly spelled and used in the context of the sentence.

5. Which cavity contains all of the frontal cavities? Choose only ONE best answer.

• A. Dorsal
• B. Thoracic
• C. Abdominopelvic
• D. Ventral

Correct answer: D

Rationale: The correct answer is D: Ventral. The ventral cavity includes both the thoracic and abdominopelvic cavities. The frontal cavities are part of the ventral cavity, which is located towards the front of the body, while the dorsal cavity is towards the back. The dorsal cavity contains the cranial and vertebral cavities, not the frontal cavities. The thoracic cavity is part of the ventral cavity but does not encompass all the frontal cavities. The abdominopelvic cavity is also part of the ventral cavity, but it does not include all of the frontal cavities. Therefore, the ventral cavity is the correct choice as it encompasses all the frontal cavities.

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