Nursing Elites

1. What does a blood sample with a pH of 3 indicate?

• A. It is strongly acidic.
• B. It is strongly basic.
• C. It is weakly acidic.
• D. It is weakly basic.

Correct answer: A

Rationale: A blood pH of 3 is significantly low, indicating a strong acidity level. The normal blood pH range is 7.35 to 7.45; therefore, a pH of 3 is far below the normal range, showing a highly acidic condition in the blood sample. Choice B is incorrect because a pH of 3 is not basic at all. Choice C is incorrect as a pH of 3 is not weakly acidic but strongly acidic. Choice D is wrong as a blood pH of 3 does not indicate a weakly basic condition.

2. A rock has a volume of 6 cm3 and a mass of 24 g. What is its density?

• A. 4 g/cm3
• B. 4 cm3/g
• C. 144 g/cm3
• D. 144 cm3/g

Correct answer: A

Rationale: Density is calculated by dividing the mass of an object by its volume. In this case, the mass of the rock is 24 g and its volume is 6 cm3. By dividing 24 g by 6 cm3, we find that the density of the rock is 4 g/cm3. Choice A is the correct answer because density is expressed in units of mass per unit volume (g/cm3). Choice B is incorrect as it represents the reciprocal of density. Choices C and D are significantly higher values and do not match the calculated density of the rock.

3. What word is used incorrectly in the following sentence: 'Brendan spent the day laying a brick foundation on the site.'

• A. site
• B. on
• C. spent
• D. laying

Correct answer: D

Rationale: The word 'laying' is used incorrectly in the sentence. The correct word should be 'laying' when referring to the action of setting up a brick foundation. Therefore, the correct choice is 'D: laying.' In this context, 'lying' would imply being in a horizontal position, which is not the intended meaning. Choices A, B, and C are not incorrect in the sentence and do not affect the clarity or correctness of the statement.

4. What term refers to the description of events in the order of their occurrence?

• A. Chronology
• B. Notation
• C. Documentation
• D. Helicon

Correct answer: A

Rationale: The correct answer is 'Chronology,' which specifically means the arrangement of events in the order of their occurrence. 'Notation' refers to a system of symbols or signs used to represent information. 'Documentation' is the process of recording information, while 'Helicon' does not relate to the description of events.

5. Which of the heart's four chambers is the largest and the strongest?

• A. Left ventricle
• B. Left atrium
• C. Right ventricle
• D. Right atrium

Correct answer: A

Rationale: The correct answer is the left ventricle. The left ventricle is the largest and strongest chamber of the heart. It pumps oxygenated blood to the entire body, making it a vital component of the circulatory system. The left atrium receives oxygen-rich blood from the lungs, the right ventricle pumps deoxygenated blood to the lungs for oxygenation, and the right atrium receives deoxygenated blood from the body.

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