if a theory is obsolete what is true of it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 If a theory is obsolete, what is true of it?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B. Outdated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Rationale: The correct answer is B: 'Outdated.' When something is described as 'obsolete,' it means that it is outdated or no longer in use. Therefore, an obsolete theory is no longer current or relevant.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D are incorrect because an obsolete theory is not considered up to date, innovative, or necessarily scientific; it is outdated and no longer relevant in its field.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. What is the meaning of Regulations?

A. Rules for Conduct
B. Official Standards
C. Personal Guidelines
D. Suggestions

Correct answer: A

Rationale: Regulations refer to rules or directives established by authorities to govern conduct or actions. Therefore, the correct answer is A - 'Rules for Conduct.' Choice B, 'Official Standards,' is incorrect as regulations go beyond just setting standards to include specific rules for behavior. Choice C, 'Personal Guidelines,' is incorrect as regulations are not individualized but are generally applicable rules. Choice D, 'Suggestions,' is incorrect as regulations are mandatory and carry legal weight, unlike suggestions which are optional and not binding.

3. What are the soft spots on the head of a newborn called?

A. Fistula
B. Fontanel
C. Follicle
D. Fissure

Correct answer: B

Rationale: The correct answer is 'Fontanel.' Fontanels are the soft spots on a newborn's head where the skull bones have not yet fused together, allowing for some flexibility during birth and rapid brain growth in early infancy. 'Fistula' is a medical term for an abnormal connection between two body parts. 'Follicle' refers to a small cavity in the skin from which hair grows. 'Fissure' is a narrow opening or crack, not related to the soft spots on a newborn's head.

4. Which word names a medicine whose purpose is to induce vomiting?

A. Laxative
B. Emetic
C. Vaccine
D. Analgesic

Correct answer: B

Rationale: The correct answer is B, 'Emetic.' An emetic is a medication specifically designed to induce vomiting. This helps the body expel toxic substances or clear the stomach. Choice A, 'Laxative,' aids in relieving constipation by promoting bowel movements, not inducing vomiting. Choice C, 'Vaccine,' is a substance used to stimulate the immune system against specific diseases, not to induce vomiting. Choice D, 'Analgesic,' refers to a medication used to relieve pain, not to induce vomiting. Therefore, options A, C, and D are incorrect in the context of inducing vomiting.

5. If someone is disseminating information, what are they doing?

A. Hiding it
B. Broadcasting it
C. Destroying it
D. Withholding it

Correct answer: B

Rationale: The correct answer is B: 'Broadcasting it.' Disseminating information means spreading or sharing it widely to reach a broader audience. Choice A, 'Hiding it,' is incorrect as disseminating involves making information known, not concealing it. Choice C, 'Destroying it,' is incorrect as disseminating means to distribute, not to eliminate. Choice D, 'Withholding it,' is incorrect because withholding information means keeping it back rather than sharing it openly.