HESI A2
HESI A2 Practice Test Anatomy and Physiology
1. During an interview, a parent of a hospitalized child is sitting in an open position. As the interviewer begins to discuss his son's treatment, however, he suddenly crosses his arms against his chest and crosses his legs. This would suggest that the parent is:
- A. just changing positions.
- B. more comfortable in this position.
- C. tired and needs a break from the interview.
- D. uncomfortable talking about his son's treatment.
Correct answer: D
Rationale: The parent's sudden change in body language from an open position to crossing arms and legs suggests discomfort or defensiveness, particularly when discussing his son's treatment. This closed-off position indicates a lack of willingness to share information and potentially signals discomfort with the topic being discussed. Choice A is incorrect as the abrupt shift in body language indicates more than just a change in position. Choice B is incorrect because crossing arms and legs typically signal defensiveness or discomfort rather than comfort. Choice C is incorrect as there are specific body language cues indicating discomfort rather than just fatigue.
2. Electric motors convert electrical energy primarily into:
- A. Thermal energy
- B. Light
- C. Mechanical energy
- D. Sound waves
Correct answer: C
Rationale: Electric motors convert electrical energy into mechanical energy. When electricity passes through the coils in the motor, it creates a magnetic field that interacts with the field from the permanent magnets, resulting in a force that drives motion. Choice A, 'Thermal energy,' is incorrect as electric motors are designed to minimize heat production. Choice B, 'Light,' is incorrect as electric motors do not produce light as a primary output. Choice D, 'Sound waves,' is incorrect as the primary output of an electric motor is mechanical motion, not sound waves.
3. What is the meaning of 'repugnant'?
- A. destructive
- B. selective
- C. collective
- D. offensive
Correct answer: D
Rationale: The correct answer is D: 'offensive.' Repugnant means offensive or disgusting. In this context, 'destructive,' 'selective,' and 'collective' do not accurately capture the meaning of 'repugnant,' making them incorrect choices. 'Offensive' is the most appropriate term to describe something that is repugnant.
4. What is the process by which cells divide to form two identical daughter cells?
- A. Mitosis
- B. Meiosis
- C. Binary Fission
- D. Cellular Division
Correct answer: A
Rationale: The correct answer is A, Mitosis. Mitosis is the process in which a cell divides to form two identical daughter cells. Choice B, Meiosis, is a type of cell division that results in four non-identical daughter cells with half the number of chromosomes. Choice C, Binary Fission, is a form of asexual reproduction used by prokaryotic organisms. Choice D, Cellular Division, is a general term that encompasses various processes of cell division, but specifically, mitosis refers to the division resulting in two identical daughter cells.
5. Which of the following is equivalent to 0.0009?
- A. 0.009%
- B. 0.9%
- C. 0.09%
- D. 9%
Correct answer: C
Rationale: To convert 0.0009 to a percentage, you need to multiply by 100. This gives 0.0009 as 0.09%. Therefore, choice C is the correct answer. Choice A, 0.009%, is incorrect because it represents 0.009, not 0.0009. Choice B, 0.9%, is incorrect as it represents 0.9, which is a different value. Choice D, 9%, is also incorrect as it represents 9, not 0.0009.
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