Nursing Elites

1. What is the meaning of the word 'placebo' in the following sentence: 'Ten patients will receive the experimental drug while 10 take a placebo'?

• A. Fallback
• B. Substitute
• C. Control
• D. Curative

Correct answer: C

Rationale: In the context of the sentence, the word 'placebo' refers to a substance or treatment that resembles a real medical treatment but has no therapeutic effect. It is used as a standard against which the effects of the experimental drug are compared. A placebo is typically included in a control group in medical research to evaluate the actual effects of the experimental drug. Therefore, in this scenario, the placebo serves as a control to gauge the effectiveness of the experimental drug, making choice C the correct answer. Choices A, B, and D are incorrect because a placebo is not a fallback, substitute, or curative treatment in this context.

2. A lab needs 200ml of a 5% salt solution. They only have a 10% solution. How much 10% solution and water should be mixed?

• A. 100ml 10% solution, 100ml water
• B. 150ml 10% solution, 50ml water
• C. 160ml 10% solution, 40ml water
• D. 200ml 10% solution, 0ml water

Correct answer: B

Rationale: Rationale: 1. Let x be the volume of the 10% solution needed and y be the volume of water needed. 2. The total volume of the final solution is 200ml, so x + y = 200. 3. The concentration of the final solution is 5%, so the amount of salt in the final solution is 0.05 * 200 = 10g. 4. The amount of salt in the 10% solution is 0.1x, and the amount of salt in the water is 0, so the total amount of salt in the final solution is 0.1x. 5. Since the total amount of salt in the final solution is 10g, we have 0.1x = 10. 6. Solving for x, we get x = 100ml. 7. Substituting x =

3. Something that is systematic is organized and planned. Another word for this might be ___________.

• A. involuntary
• B. universal
• C. formulaic
• D. manual

Correct answer: C

Rationale: The word 'formulaic' means following a formula or set pattern. Therefore, something that is systematic and follows a structured plan can also be described as formulaic. Choices A, B, and D are incorrect. 'Involuntary' means done without will or conscious control, 'universal' means affecting, or done by all people or things in the world, and 'manual' means operated or done by hand rather than automatically or electronically. Therefore, 'formulaic' is the most accurate synonym in the given context.

4. Which of the following is not listed as a detail in the passage about Aromatherapy?

• A. Subjects were given mild stressors.
• B. Lemon and lavender scents were tested.
• C. Vanilla worked better than lemon for stress.
• D. The study took place at Ohio State University.

Correct answer: C

Rationale: The passage does not support the idea that vanilla worked better than lemon for stress relief; instead, it focuses specifically on lemon and lavender as the tested scents. The absence of this information regarding vanilla makes C the correct answer, as it is not included in the details provided in the passage.

5. Which element has an atomic mass greater than that of sodium?

• A. Boron
• B. Oxygen
• C. Fluorine
• D. Silicon

Correct answer: D

Rationale: Silicon has an atomic mass greater than that of sodium. The atomic mass of silicon is approximately 28.0855 u, whereas the atomic mass of sodium is approximately 22.9898 u. Therefore, silicon has a greater atomic mass compared to sodium. Boron, Oxygen, and Fluorine have atomic masses lower than sodium, making them incorrect choices in this context.

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