what does parameter mean

HESI A2

HESI A2 Practice Vocabulary

1. What does 'Parameter' mean?

A. A constant variable
B. A characteristic or constant factor
C. A measurable limit
D. A calculated risk

Correct answer: B

Rationale: The correct answer is B: 'A characteristic or constant factor.' In the context of systems or experiments, a parameter is a fixed element that influences the behavior or outcome. It is not a variable like in choice A, which can change. Choice C, 'A measurable limit,' is incorrect as a parameter is not necessarily a physical limit but a defining factor. Choice D, 'A calculated risk,' is unrelated to the definition of a parameter.

2. The abbreviation DTs on a patient’s chart stands for ___________.

A. deep tendon reflex
B. descending thorax
C. delirium tremens
D. dextrose in water

Correct answer: C

Rationale: The abbreviation DTs on a patient's chart stands for delirium tremens, which is a severe form of alcohol withdrawal. Symptoms of delirium tremens include confusion, hallucinations, severe agitation, seizures, and autonomic instability. This condition requires prompt medical treatment to prevent serious complications. Choices A, B, and D are incorrect. Deep tendon reflex (A) refers to the reflex response elicited by tapping a tendon with a reflex hammer, descending thorax (B) is not a recognized medical term, and dextrose in water (D) is a solution used for various medical purposes but is not represented by the abbreviation DTs.

3. Select the meaning of the word 'tumult' in the sentence: 'The tumult in the emergency room seemed to last a long time.'

A. Siren
B. Distress
C. Suffering
D. Commotion

Correct answer: D

Rationale: In this sentence, the word 'tumult' is used to describe a state of confusion, disorder, and chaos in the emergency room. 'Commotion' is the closest synonym to this meaning, making it the correct choice from the list provided. Choice A, 'Siren,' does not capture the meaning of chaos and disorder. Choice B, 'Distress,' refers more to a state of extreme anxiety or suffering rather than the commotion described. Choice C, 'Suffering,' is not the best fit as the word 'tumult' in this context does not specifically imply suffering, but rather a noisy and chaotic situation.

4. TO GATHER TOGETHER means to ?

A. Semblance
B. Assembly
C. Appearance
D. Assemble

Correct answer: D

Rationale: TO GATHER TOGETHER means to bring things or people together in one place. The word "assemble" is synonymous with gathering together and is the most appropriate choice among the given options.

5. What is the best description for the term Aseptic?

A. Sterilized
B. Purified
C. Contaminated
D. Polluted

Correct answer: B

Rationale: The correct answer is B: 'Purified.' Aseptic means free from contamination or sterile. While 'Sterilized' (choice A) is related to the elimination of all microorganisms, aseptic goes beyond sterilization to ensure freedom from contamination in a broader sense. 'Contaminated' (choice C) and 'Polluted' (choice D) are incorrect as they mean the opposite of aseptic, implying the presence of unwanted or harmful substances.