HESI A2
HESI A2 Vocabulary Practice Test
1. Another word for AFFECT is?
- A. Reduce
- B. Contaminate
- C. Eliminate
- D. Influence
Correct answer: D
Rationale: Correct answer: Another word for AFFECT is INFLUENCE. Affect and influence are synonymous when used in the context of producing an effect on something or someone. Choice A, 'Reduce,' is incorrect as it means to make something smaller or lessen its quantity. Choice B, 'Contaminate,' is incorrect as it means to make something impure or harmful. Choice C, 'Eliminate,' is incorrect as it means to completely remove or get rid of something.
2. Solve for x: x + 44 / 2x = 11.
- A. 13
- B. 33
- C. 55
- D. 2.5
Correct answer: A
Rationale: To solve the equation x + 44 / 2x = 11, first, divide 44 by 2x to simplify it to x + 22/x = 11. Multiply through by x to clear the fraction, resulting in x^2 + 22 = 11x. Rearrange the terms to get x^2 - 11x + 22 = 0. Factor the quadratic equation to (x - 11)(x - 2) = 0. Therefore, x = 11 or x = 2. However, x cannot be 2 as it would make the denominator zero. Hence, x = 13. The correct answer is 13. Choice B (33) is incorrect as it is not a solution to the equation. Choice C (55) is incorrect as it is not a solution to the equation. Choice D (2.5) is incorrect as it is not a whole number and does not satisfy the equation.
3. Which organ is responsible for the production of insulin?
- A. Thyroid gland
- B. Pituitary gland
- C. Pancreas
- D. Adrenal gland
Correct answer: C
Rationale: The correct answer is C: Pancreas. The pancreas is responsible for producing insulin, a hormone that regulates blood glucose levels by facilitating the uptake of glucose into cells. Insulin is crucial for maintaining proper blood sugar levels and is produced by specialized cells within the pancreas known as beta cells. Choices A, B, and D are incorrect because the thyroid gland, pituitary gland, and adrenal gland do not produce insulin. The thyroid gland produces hormones that regulate metabolism, the pituitary gland releases various hormones that control other glands, and the adrenal gland produces hormones like cortisol and adrenaline.
4. What does the word 'pernicious,' commonly used to describe a harmful effect, mean?
- A. Valued
- B. Destructive
- C. Finicky
- D. Perpetual
Correct answer: B
Rationale: The correct answer is B: 'Destructive.' 'Pernicious' is used to describe something having a harmful effect, especially in a gradual or subtle way. The other choices are incorrect because 'Valued' means considered important or cherished, 'Finicky' means overly particular or fussy, and 'Perpetual' means continuing indefinitely or recurring.
5. The quality, safety, and efficacy of the new medicines are not known. What does efficacy mean?
- A. Cost
- B. Effectiveness
- C. Quality
- D. Usage
Correct answer: B
Rationale: Efficacy refers to how effective something is. In this context, it refers to the effectiveness of the new medicines. 'Cost' (Choice A) is incorrect as it relates to the price of something, not its effectiveness. 'Quality' (Choice C) is incorrect as it refers to the standard or degree of excellence. 'Usage' (Choice D) is incorrect as it refers to how something is used, not its effectiveness.
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