HESI A2
HESI A2 Math
1. A nurse works in a neonatal unit where infants' weights are measured in grams. What is the equivalent of 1,500 grams in pounds?
- A. 3.3 lbs
- B. 3.3 lbs
- C. 3.3 lbs
- D. 3.3 lbs
Correct answer: A
Rationale: To convert grams to pounds, you can use the conversion factor: 1 pound = 453.59237 grams. Therefore, to find the equivalent of 1,500 grams in pounds, divide 1,500 by 453.59237 to get approximately 3.3 pounds. Choice A is the correct answer because it accurately represents the conversion. Choices B, C, and D are duplicates and do not provide an alternative option.
2. Select the word that makes this sentence grammatically correct. Our subcommittee ___________ on the fourth Wednesday of each month.
- A. meet
- B. meets
- C. meeting
- D. are meeting
Correct answer: B
Rationale: The word 'subcommittee' is singular, so the correct verb to use is 'meets' as it agrees with the singular subject. 'Meets' is the present tense form of the verb that matches a singular subject. Choice A 'meet' is incorrect as it is the plural form of the verb. Choice C 'meeting' is a gerund and does not fit the sentence structure. Choice D 'are meeting' is incorrect as 'are' is not the correct auxiliary verb to pair with 'subcommittee'.
3. The hospital accepts a certain quota of INDIGENT patients. What does indigent mean?
- A. Wealthy
- B. Impoverished
- C. Educated
- D. Healthy
Correct answer: B
Rationale: Indigent means impoverished or in need of financial assistance. In the context of the question, the hospital is willing to treat patients who are unable to afford medical care, indicating that indigent refers to those who are impoverished or lacking financial resources. Choice A, 'Wealthy,' is incorrect as indigent is the opposite of wealthy. Choice C, 'Educated,' is incorrect as being indigent is related to financial status, not education. Choice D, 'Healthy,' is incorrect as indigent does not refer to one's health status but rather their financial situation.
4. The orthopedic surgeon informs you that you have broken the middle region of the humerus. What area is he describing?
- A. Epiphysis
- B. Articular cartilage
- C. Perichondrium
- D. Diaphysis
Correct answer: D
Rationale: The diaphysis is the correct answer in this scenario. It refers to the middle or shaft region of a long bone like the humerus. The epiphysis is the end of a long bone, while articular cartilage is the smooth tissue covering the ends of bones at a joint. The perichondrium is the dense irregular connective tissue that surrounds cartilage.
5. What part of the eye is responsible for focusing light on the retina?
- A. Cornea
- B. Lens
- C. Retina
- D. Pupil
Correct answer: B
Rationale: The lens of the eye is responsible for focusing light on the retina. When light enters the eye, it first passes through the cornea, which helps in bending the light, and then the lens further refracts and focuses the light onto the retina at the back of the eye. The retina contains photoreceptor cells that convert light into neural signals, which are then sent to the brain for visual processing. The cornea is the transparent outermost layer of the eye that helps in focusing light, but the main responsibility lies with the lens. The retina is the layer at the back of the eye that receives the focused light and initiates the process of vision. The pupil is the opening in the center of the iris that controls the amount of light entering the eye and is not directly involved in focusing light on the retina.
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