Nursing Elites

1. Which of the following is known as the production of red blood cells?

• A. Thrombopoiesis
• B. Erythropoiesis
• C. Hematopoiesis
• D. Phagocytosis

Correct answer: B

Rationale: Erythropoiesis specifically refers to the process of producing red blood cells (erythrocytes) in the bone marrow. Hematopoiesis is the broader term that encompasses the production of all types of blood cells, including red blood cells, white blood cells, and platelets. Phagocytosis is the process by which cells engulf and digest particles, while thrombopoiesis is the production of platelets. Therefore, the correct answer is B as it directly relates to the production of red blood cells.

2. What are positively charged ions called?

• A. Neutrons
• B. Protons
• C. Cations
• D. Electrons

Correct answer: C

Rationale: Positively charged ions are called cations. When an atom loses electrons, it becomes positively charged and is referred to as a cation. Neutrons are neutral particles found in the nucleus of an atom, not charged. Protons are positively charged particles in the nucleus. Electrons are negatively charged particles orbiting the nucleus, not positively charged ions.

3. Choose the meaning of the word 'contravene' in the following sentence: 'Did the interns contravene the doctor’s orders?'

• A. Comply with
• B. Misjudge
• C. Comprehend
• D. Disregard

Correct answer: D

Rationale: The word 'contravene' in this sentence means to go against or disobey. Therefore, the correct meaning is closest to 'disregard.' The interns did not follow or comply with the doctor's orders, indicating that they contravened them. 'Comply with' (Choice A) is the opposite of 'contravene,' 'misjudge' (Choice B) and 'comprehend' (Choice C) do not accurately reflect the meaning of 'contravene' in this context.

4. A store is offering a 25% discount on all items. If an item costs $120, what is the discounted price?

• A. $90
• B. $80
• C. $75
• D. $95

Correct answer: A

Rationale: To calculate the discounted price after a 25% discount on $120, you first find the discount amount by multiplying $120 by 0.25, which equals $30. Subtracting the discount amount from the original price gives the discounted price: $120 - $30 = $90. Therefore, the correct answer is $90. Choice B, $80, is incorrect as it does not consider the 25% discount. Choice C, $75, is incorrect as it is lower than the correct calculation. Choice D, $95, is incorrect as it does not reflect the reduction from the discount.

5. Select the meaning of the word 'labile' in the sentence: 'The child developed a labile condition that worried the parents.'

• A. Fevered
• B. Volatile
• C. Stomach
• D. Vision

Correct answer: B

Rationale: The correct answer is B, 'Volatile.' In this context, 'labile' means having an unpredictable or changeable condition. Choice A, 'Fevered,' is incorrect as it relates to having a fever, not the intended meaning of 'labile.' Choices C and D, 'Stomach' and 'Vision,' are unrelated to the context of the sentence and do not reflect the meaning of 'labile' as 'volatile.'

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