select the meaning of the underlined word in the following sentence all volatile liquids should be stored and labeled correctly

HESI A2

Vocabulary HESI A2

1. Select the meaning of the underlined word in the following sentence. All volatile liquids should be stored and labeled correctly.

A. Unstable
B. Abnormal
C. Lethal
D. Blended

Correct answer: A

Rationale: In the context of the sentence, 'volatile' means likely to change rapidly and unpredictably or evaporate quickly. When referring to liquids, volatile typically implies that the liquids are unstable and can easily change from liquid to gas. Therefore, the most appropriate meaning of 'volatile' in this sentence is 'unstable.' Choices B, C, and D are incorrect because 'abnormal' and 'lethal' do not capture the essence of rapid change or evaporation associated with volatile liquids, while 'blended' is unrelated to the characteristics of volatile liquids described in the sentence.

2. Which sentence is NOT GRAMMATICALLY CORRECT?

A. Because he did not examine the patient, the healthcare provider prescribed her with the wrong medication.
B. The nurse decided to bathe the client, then trim his nails.
C. The dietician, through negligence, made a mistake with the diet plan.
D. Since the child was feeling ill, the nurse sent him home.

Correct answer: B

Rationale: Choice B is incorrect due to the use of 'than' instead of 'then.' The correct word in this context is 'then' to indicate the order of actions. Choices A, C, and D are all grammatically correct. In choice A, the sentence structure is correct with a clear cause-effect relationship. Choice C is grammatically sound, describing the dietician's mistake. Choice D is also grammatically correct, showing a cause (the child feeling ill) leading to an effect (the nurse sending him home).

3. What does Labile mean?

A. Stable
B. Changing rapidly and often
C. Unchanging
D. Rarely changing

Correct answer: B

Rationale: Labile means something that changes rapidly and often. In this context, 'Stable' (Choice A) is the opposite of labile, 'Unchanging' (Choice C) and 'Rarely changing' (Choice D) do not capture the essence of labile. Labile is specifically used to describe something that is easily altered, constantly changing, or unstable, hence the most suitable choice is 'Changing rapidly and often' (Choice B).

4. What does 'Obsolete' mean?

A. Innovative
B. Outdated
C. Effective
D. Advanced

Correct answer: B

Rationale: The correct answer is 'B: Outdated.' Obsolete refers to something that is outdated or no longer in use. 'Innovative' (choice A) means introducing new ideas or methods; 'Effective' (choice C) means successful in producing a desired result; 'Advanced' (choice D) means far on or ahead in development or progress. Therefore, 'Outdated' is the most appropriate antonym for 'Obsolete.'

5. What is another word for the kneecap?

A. patina
B. patella
C. pastel
D. pathogen

Correct answer: B

Rationale: The correct term for the kneecap is patella. It is a small, flat bone that sits at the front of the knee joint and helps in the transmission of force between the thigh and lower leg while providing protection to the knee joint. 'Patina' refers to a green or brown film on the surface of bronze or similar metals, 'pastel' is a pale, soft shade or color, and 'pathogen' is a bacterium, virus, or other microorganism that can cause disease.