HESI A2
Practice HESI A2 Math Test Questions
Question 1 of 5
A newborn weighs 8 pounds 5 ounces. There are 453.59 grams per pound. What is the infant's weight in grams?
Correct Answer: B
Rationale:
To convert pounds and ounces to grams:
8 pounds = 8 453.59 = 3,628.72 grams.
5 ounces = (5 · 16) 453.59 = 141.75 grams.
Total weight = 3,628.72 + 141.75 = 3,629 grams (rounded).
Therefore, the infant's weight is approximately 3,629 grams.
Choice A, 2268 grams, is incorrect as it does not account for the weight in ounces.
Choice C, 3770 grams, is incorrect as it is not the accurate converted weight.
Choice D, 3856 grams, is incorrect as it does not consider the conversion of ounces to grams.
Question 2 of 5
What temperature in Fahrenheit is 50°C? (Enter numeric value only. If rounding is necessary, round to the nearest whole number.)
Correct Answer: B
Rationale: The correct answer is
B) 122°F.
To convert Celsius to Fahrenheit, you can use the formula: \( F = (C \times 9/5) + 32 \). When you plug in 50°C into the formula, you get: \( F = (50 \times 9/5) + 32 = 122°F \).
Option
A) 110°F is incorrect because it is the result of using the formula incorrectly or rounding down too much. Option
C) 130°F is incorrect because it is the result of rounding up too much. Option
D) 140°F is incorrect because it is the result of an error in calculation or misapplication of the formula.
Understanding temperature conversions is essential in pharmacology when dealing with drug storage and administration instructions that may be provided in either Celsius or Fahrenheit. Being able to accurately convert between the two scales ensures proper dosage and administration of medications, which is crucial for patient safety and effective treatment. Mastering math skills like this is vital for healthcare professionals to ensure precision in their work and avoid errors that could potentially harm patients.
Question 3 of 5
A healthcare professional works in a military hospital from 1300 to 2000. What time of day does this healthcare professional work?
Correct Answer: C
Rationale: The shift from 1300 (1:00 PM) to 2000 (8:00 PM) corresponds to early afternoon to bedtime.
Therefore, the correct answer is C, as this healthcare professional works during the early afternoon to bedtime hours.
Choices A, B, and D are incorrect because the work hours fall within the early afternoon to evening time frame, not early morning, lunchtime, or midnight to sunrise.
Question 4 of 5
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?
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.
Question 5 of 5
A woman received a bottle of perfume as a present. The bottle contains ½ oz of perfume. How many milliliters is this?
Correct Answer: B
Rationale:
To convert ounces to milliliters, we know that 1 ounce is approximately 30 mL.
Therefore, 0.5 ounces would be half of that, which is 15 mL. So, 0.5 oz of perfume is equal to 15 mL.
Choice A (10 mL),
Choice C (20 mL), and
Choice D (25 mL) are incorrect as they do not reflect the accurate conversion from ounces to milliliters.