full-length 150-question HESI A2 practice exam (Second Edition) with all-new content. Each question includes multiple answer choices, the correct answer, and a detailed rationale

full-length 150-question HESI A2 practice exam (Second Edition)
with all-new content. Each question includes multiple answer
choices, the correct answer, and a detailed rationale.




📐 MATHEMATICS (25 Questions)
Question 1
A nurse needs to administer 0.45 liters of saline. How many
milliliters is this?
A) 45 mL
B) 450 mL
C) 4500 mL
D) 4.5 mL

Correct Answer: B) 450 mL

Rationale: 1 liter = 1000 mL. 0.45 × 1000 = 450 mL.



Question 2
What is 40% of 250?
A) 100
B) 62.5
C) 10
D) 25

Correct Answer: A) 100

,Rationale: 0.40 × 250 = 100.



Question 3
Convert 56 to a decimal.
​




A) 0.8333
B) 0.85
C) 0.75
D) 0.80

Correct Answer: A) 0.8333

Rationale: 5 ÷ 6 = 0.8333... (repeating).



Question 4
A vial contains 0.5 grams of medication. How many milligrams is
this?
A) 5 mg
B) 50 mg
C) 500 mg
D) 5000 mg

Correct Answer: C) 500 mg

Rationale: 1 gram = 1000 mg. 0.5 × 1000 = 500 mg.

,Question 5
Solve for x: 4x − 7 = 21
A) 5
B) 7
C) 8
D) 9

Correct Answer: B) 7

Rationale: 4x = 21 + 7 = 28, so x = 28 ÷ 4 = 7.



Question 6
7
What is 10​as a percentage?
A) 7%
B) 70%
C) 0.7%
D) 700%

Correct Answer: B) 70%

Rationale: 7 ÷ 10 = 0.70; multiply by 100 to get 70%.



Question 7
Convert 1500 mL to liters.
A) 1.5 L
B) 15 L

, C) 0.15 L
D) 150 L

Correct Answer: A) 1.5 L

Rationale: 1500 ÷ 1000 = 1.5 L.



Question 8
A patient weighs 165 pounds. Convert to kilograms (1 kg = 2.2 lb).
A) 75 kg
B) 82.5 kg
C) 363 kg
D) 55 kg

Correct Answer: A) 75 kg

Rationale: 165 ÷ 2.2 = 75 kg.



Question 9
9
What is 10 − 15 ?​ ​




8
A) 10 ​




7
B) 10 ​




9
C) 10
D) 12​




7
Correct Answer: B) 10 ​