HESI A2
Vocabulary HESI A2
1. Select the meaning of the underlined word in the following sentence. Quick action kept the disease from permeating the general population.
- A. Conquering
- B. Wounding
- C. Deterring
- D. Infiltrating
Correct answer: D
Rationale: In this context, the word 'permeating' indicates the process of spreading throughout or penetrating into. 'Infiltrating' is the most appropriate synonym for this meaning, as it captures the idea of the disease spreading into the general population. 'Conquering' (Choice A) means to overcome or defeat, which is not the meaning in this context. 'Wounding' (Choice B) means to cause injury, which is not relevant to the sentence. 'Deterring' (Choice C) means to discourage or prevent, which does not fit the context of the disease spreading.
2. 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.
3. What is your “funny bone” actually?
- A. Humerus
- B. Ulnar nerve
- C. Carpal bone
- D. Biceps brachii
Correct answer: B
Rationale: Your 'funny bone' is actually your ulnar nerve, not a bone. The ulnar nerve runs along the inside part of your elbow and is easily bumped or compressed, leading to a tingling or slightly painful sensation that is commonly referred to as hitting your funny bone. The humerus (Choice A) is the long bone in your upper arm, the carpal bone (Choice C) is a bone in your wrist, and the biceps brachii (Choice D) is a muscle in your upper arm. Therefore, the correct answer is the ulnar nerve (Choice B).
4. The abbreviation PDR refers to a ___________.
- A. drug
- B. procedure
- C. book
- D. muscle group
Correct answer: A
Rationale: The abbreviation PDR stands for Physician's Desk Reference, which is a widely used book containing information about prescription drugs, including their uses, side effects, and dosages. Therefore, the abbreviation PDR is associated with drugs. Choices B, C, and D are incorrect because PDR specifically relates to drugs and not procedures, books, or muscle groups.
5. Select the meaning of the following phrase. 'A system of procedures to follow.'
- A. Regimen
- B. Regime
- C. Testament
- D. Treatment
Correct answer: A
Rationale: The correct answer is 'Regimen.' 'Regimen' refers to a prescribed set of procedures or a routine, especially related to health. Choice B, 'Regime,' typically refers to a system of government or a ruling period. Choice C, 'Testament,' means a person's will or a statement of belief. Choice D, 'Treatment,' is a medical care given to a patient.
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