HESI A2
Practice HESI A2 Math Test
1. A nurse is reviewing the daily intake and output (I&O) of a patient consuming a clear diet. The urinary drainage bag denotes a total of 1,000 mL for the past 24 hours. The total intake is 2 8-oz cups of coffee, 1 16-oz serving of clear soup, and 1 pint of water. How much is the deficit in milliliters?
- A. 440 mL
- B. 540 mL
- C. 660 mL
- D. 760 mL
Correct answer: A
Rationale: 2 8-oz cups of coffee = 16 oz = 16 × 30 = 480 mL. 1 16-oz serving of clear soup = 16 × 30 = 480 mL. 1 pint of water = 16 oz = 480 mL. Total intake = 480 + 480 + 480 = 1,440 mL. Deficit = 1,440 mL (intake) - 1,000 mL (output) = 440 mL. Therefore, the deficit in milliliters is 440 mL. The correct answer is A. Choice B, 540 mL, is incorrect as it miscalculates the total intake. Choice C, 660 mL, is incorrect as it does not accurately subtract the output from the intake. Choice D, 760 mL, is incorrect as it overestimates the deficit by not considering the correct total intake and output values.
2. A lampshade is shaped like a frustum of a cone, with base diameters of 20cm and 10cm and a height of 15cm. What is its volume?
- A. 625 cu cm
- B. 1250 cu cm
- C. 1875 cu cm
- D. 2500 cu cm
Correct answer: C
Rationale: To find the volume of the frustum of a cone, divide it into two cones and calculate their volumes separately. The formula for the volume of a cone frustum involves the radii of both bases and the height. The volume of the frustum cone can be calculated as V = 1/3 * π * h * (R^2 + r^2 + R * r), where R is the larger radius, r is the smaller radius, and h is the height. Substituting the values, V = 1/3 * π * 15 * (10^2 + 20*10 + 20^2) = 1875 cu cm. Therefore, the correct answer is 1875 cu cm. Choice A, B, and D are incorrect as they do not correspond to the correct calculation of the frustum's volume.
3. Use the VERB correctly.
- A. A pitchfork and a halter were left on the concrete floor.
- B. There is a pig, sheep, and horse in the red trailer.
- C. Here are the cages for the 2 rabbits and 2 chickens.
- D. Sherri and her cousin were at the County fair this year.
Correct answer: D
Rationale: Choice D, 'Sherri and her cousin were at the County fair this year,' is the correct answer. 'Sherri and her cousin' is a compound subject, requiring the plural verb 'were' for proper subject-verb agreement. Choices A, B, and C contain subject-verb agreement errors. In Choice A, 'A pitchfork and a halter' is a compound subject and should be followed by the plural verb 'were.' In Choice B, 'a pig, sheep, and horse' is a list of items that should take the plural verb 'are.' Lastly, in Choice C, 'Here are' should be used instead of 'Here is' to match the plural subject 'the cages for the 2 rabbits and 2 chickens.'
4. What is one of the author’s primary purposes in writing this essay?
- A. To persuade
- B. To entertain
- C. To analyze
- D. To reflect
Correct answer: A
Rationale: The author primarily aims to persuade the reader of the health benefits of omega-3 fatty acids and encourages ensuring sufficient omega-3 intake through diet.
5. What is another word for deluge?
- A. Earthquake
- B. Dimness
- C. Downpour
- D. Chasm
Correct answer: C
Rationale: A "deluge" is a sudden and heavy rainfall or flood, so the word that is most closely related in meaning to "deluge" is "downpour," which also refers to a heavy and sustained rainfall. The other choices, "earthquake," "dimness," and "chasm," do not relate to a flooding or heavy rainfall situation.
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