if a theory is obsolete what is true of it

HESI A2

Vocabulary HESI A2 Practice Test

1. If a theory is obsolete, what is true of it?

A. Up to date
B. Outdated
C. Innovative
D. Scientific

Correct answer: B

Rationale: The correct answer is B: 'Outdated.' When something is described as 'obsolete,' it means that it is outdated or no longer in use. Therefore, an obsolete theory is no longer current or relevant. Choices A, C, and D are incorrect because an obsolete theory is not considered up to date, innovative, or necessarily scientific; it is outdated and no longer relevant in its field.

2. Select the meaning of the underlined word in the following sentence. In children with high fevers, the use of aspirin is contraindicated.

A. Banned
B. Inadvisable
C. Anticipated
D. Expedient

Correct answer: B

Rationale: The word 'contraindicated' means not recommended or inadvisable in this context. It suggests that using aspirin for children with high fevers is not a good idea or is not suitable. The other options (A. Banned, C. Anticipated, D. Expedient) do not accurately convey the meaning of the word 'contraindicated' in this sentence. 'Banned' implies a prohibition, 'Anticipated' means expected, and 'Expedient' means convenient or practical, none of which capture the intended meaning of 'contraindicated.'

3. What is another word for toxin?

A. Impurity
B. Element
C. Remedy
D. Poison

Correct answer: D

Rationale: The correct answer is D, Poison. A toxin is a harmful substance that can cause illness or death, and poison is a synonym commonly used to refer to such substances. Choices A, B, and C are incorrect because impurity refers to something being dirty or unclean, an element is a pure substance that cannot be broken down further, and a remedy is a solution or treatment for a problem, not a harmful substance like a toxin.

4. Another word for ASSURED is?

A. Confirmed the truth of
B. Sympathized with
C. Denied the truth of
D. Made known to

Correct answer: A

Rationale: The word 'assured' means to have made certain or confident of something. 'Confirmed' is a synonym that aligns with this meaning. Therefore, the correct answer is A, 'Confirmed the truth of.' Choice B, 'Sympathized with,' does not have a similar meaning to 'assured.' Choice C, 'Denied the truth of,' is the opposite in meaning to 'assured.' Choice D, 'Made known to,' does not convey the same sense of certainty as 'assured.'

5. What is the meaning of Absorption?

A. Movement of nutrients from the digestive tube into the bloodstream
B. Secretion of enzymes into the stomach
C. Absorption of water from the intestines
D. Excretion of waste from the body

Correct answer: A

Rationale: The correct answer is A: 'Movement of nutrients from the digestive tube into the bloodstream.' Absorption specifically refers to the process where nutrients are taken up by the body from the digestive tract into the bloodstream for utilization. Choices B, C, and D are incorrect. Choice B refers to the secretion of enzymes into the stomach, choice C refers to the absorption of water from the intestines, and choice D refers to the excretion of waste from the body, which are not the definitions of absorption.