to aspirate fluid you might use a

HESI A2

HESI A2 Vocabulary 2023

1. To aspirate fluid, you might use a ___________.

A. syringe
B. beaker
C. test tube
D. flange

Correct answer: A

Rationale: To aspirate fluid, you would typically use a syringe. A syringe is a device consisting of a tube and a plunger, which allows you to draw fluids such as blood or medication into the tube by pulling back on the plunger. This action is called aspiration, and the syringe is a common tool for this purpose in various medical procedures. Choices B, C, and D are incorrect as they are not typically used for aspiration procedures. A beaker is a glass container used for holding liquids, a test tube is used for holding or mixing small quantities of substances, and a flange is a projecting rim or edge used for strength or for attaching to another object.

2. What is the CORRECT CONTRACTION for 'They are'?

A. Their
B. They're
C. The're
D. No contraction used

Correct answer: B

Rationale: The correct contraction for 'They are' is 'They're.' 'Their' is a possessive pronoun indicating ownership, not a contraction. 'The're' is not a valid contraction. 'No contraction used' is incorrect as there is a contraction for 'They are,' which is 'They're.'

3. What does Endogenous mean?

A. Produced outside the body
B. Produced within the body
C. Taken from an external source
D. Linked to environmental factors

Correct answer: B

Rationale: The correct answer is B: 'Produced within the body.' Endogenous refers to substances or processes that originate or are produced within an organism or system. Choices A, C, and D are incorrect. Choice A, 'Produced outside the body,' is the opposite of endogenous. Choice C, 'Taken from an external source,' describes exogenous rather than endogenous. Choice D, 'Linked to environmental factors,' is not a direct definition of endogenous.

4. Which phrase should be moved to improve sentence clarity? 'He opened the door slowly, trying not to wake the baby.'

A. 'Trying not to wake the baby,' he slowly opened the door
B. 'He opened the door,' trying not to wake the baby
C. 'He opened the door slowly,' trying not to wake the baby
D. 'Slowly trying not to wake the baby,' he opened the door

Correct answer: A

Rationale: Placing 'trying not to wake the baby' at the beginning as in option A clarifies the purpose of the action right away, improving the sentence's flow.

5. A blood vessel that is distended is ____

A. Narrow
B. Swollen
C. Flat
D. Dilated

Correct answer: B

Rationale: The correct answer is B: 'Swollen.' Distended means swollen or expanded, not narrow (A), flat (C), or dilated (D). When a blood vessel is distended, it is enlarged or swollen due to increased pressure.