HESI A2
HESI A2 Practice Test Vocabulary
1. What does the term 'residual' refer to in the following sentence? The nurse was asked to record the residual urine in the patient's bladder.
- A. Measurement
- B. What is left
- C. Total volume
- D. Color and clarity
Correct answer: B
Rationale: The term 'residual' refers to what is left after the main part has been taken or used. In this context, 'residual urine' specifically means the urine that remains in the bladder after urination. Choices A, C, and D do not accurately capture the meaning of 'residual' in this sentence. 'Measurement' (A) is too general, 'Total volume' (C) does not specifically pertain to what remains, and 'Color and clarity' (D) is unrelated to the concept of what is left.
2. What does 'deteriorating' mean?
- A. Improving
- B. Worsening
- C. Staying the same
- D. Fluctuating
Correct answer: B
Rationale: The correct answer is B, 'Worsening.' Deteriorating refers to something getting worse over time, not improving (choice A), staying the same (choice C), or fluctuating (choice D).
3. What is a device?
- A. An idea or concept
- B. A tool or piece of equipment
- C. A small part of a larger structure
- D. An accessory for fashion
Correct answer: B
Rationale: A device is defined as a tool or piece of equipment designed to serve a specific purpose. It is used to perform a particular function or task. An idea or concept (Choice A) may lead to the creation of a device, but they are not devices themselves. Choice C, referring to a small part of a larger structure, does not encompass the general definition of a device which implies standalone functionality. Choice D, an accessory for fashion, is entirely unrelated to the usual understanding of a device, which focuses on functionality rather than aesthetics.
4. The eye drops were intended to _____ the pupils for the eye exam.
- A. dilate
- B. constrict
- C. enlarge
- D. decrease
Correct answer: A
Rationale: The correct answer is 'dilate.' Eye drops are used to dilate the pupils, meaning to widen or enlarge them, which is necessary for an eye exam to allow more light to enter the eye. 'Constrict' (choice B) means to make smaller, which is the opposite effect needed for an eye exam. 'Enlarge' (choice C) is similar in meaning to dilate but is not the correct term used in this context. 'Decrease' (choice D) means to make less or reduce, which is also the opposite of what is required for an eye exam.
5. What is the meaning of Diameter?
- A. The width of a structure
- B. The distance across the center of an object
- C. The height of an object
- D. The radius of a circle
Correct answer: B
Rationale: The correct answer is B. Diameter is defined as the distance across the center of an object, typically a circle. Choice A is incorrect because width refers to the measurement of something from side to side, not necessarily through the center. Choice C is incorrect because height is a measurement from top to bottom, not across the center. Choice D is incorrect because the radius of a circle is the distance from the center to any point on the circle's circumference, not the distance across the center.
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