HESI A2
Quizlet Vocabulary HESI A2
1. What is Diffusion?
- A. Movement of materials from low concentration to high concentration
- B. Movement of materials from high concentration to low concentration
- C. Absorption of nutrients
- D. Breaking of materials
Correct answer: B
Rationale: Diffusion is the process where substances move from an area of high concentration to an area of low concentration. This movement occurs due to the random motion of particles and continues until equilibrium is reached. Choice A is incorrect because diffusion occurs down the concentration gradient, from high to low concentration, not from low to high concentration. Choice C is incorrect as it refers to the uptake of substances by cells, not the general process of diffusion. Choice D is incorrect as it does not accurately describe the process of diffusion; diffusion involves the movement of substances, not the breaking of materials.
2. 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 B: Fontanel. Fontanels are spaces between the bones of a newborn's skull that allow for brain growth and development. The term 'fistula' (choice A) refers to an abnormal passageway between two organs or between an organ and the body surface, not related to newborn soft spots. 'Follicle' (choice C) is a structure in the skin that contains the hair root, not related to the skull. 'Fissure' (choice D) refers to a narrow opening or crack, which is not the term used for the soft spots on a newborn's head.
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. Select the word that means 'something added to resolve a deficiency or obtain completion.'
- A. supplement
- B. complement
- C. detriment
- D. acumen
Correct answer: A
Rationale: The correct answer is 'supplement.' A supplement is something added to resolve a deficiency or obtain completion. Choice B, 'complement,' means something that completes or goes well with something. Choice C, 'detriment,' refers to something that causes harm or damage. Choice D, 'acumen,' means the ability to make good judgments and quick decisions.
5. If you give a patient medication BID, you give it ___________.
- A. as needed
- B. every two hours
- C. twice daily
- D. with food
Correct answer: C
Rationale: BID stands for 'bis in die' in Latin, which translates to 'twice a day' in English. Therefore, when medication is prescribed to be given BID, it should be administered twice daily. Choice A, 'as needed,' does not correspond to a specific dosing frequency like BID. Choice B, 'every two hours,' indicates a different dosing schedule that is more frequent than BID. Choice D, 'with food,' refers to the administration instructions related to meals and is not the correct interpretation of BID.
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