Comprehensive 45-Question Review with Detailed
Rationales | Pass Guaranteed – A+ Graded
SECTION 1: Basic Arithmetic (12 Questions)
Q1: A nurse needs to administer 0.375 grams of a medication. The available tablets are
250 mg each. How many tablets should the nurse administer?
● A. 0.5 tablet
● B. 1 tablet
● C. 1.5 tablets
● D. 2 tablets
Correct Answer: C
Rationale: Convert grams to milligrams: 0.375 g × 1000 = 375 mg. Then 375 mg ÷ 250
mg per tablet = 1.5 tablets. Always convert to the same units before calculating.
Q2: A patient's intake for 8 hours was: 240 mL of juice, 180 mL of water, and 120 mL of
ice chips (melted). What is the total intake in milliliters?
● A. 450 mL
● B. 500 mL
● C. 520 mL
● D. 540 mL
Correct Answer: D
,Rationale: Standard intake documentation counts ice chips as the volume of water
produced when melted; in NLN exam questions, ice chips are typically recorded as full
mL equivalent (not half); total intake = 240 mL + 180 mL + 120 mL = 540 mL.
Q3: Calculate: 2 3/4 + 1 5/8 − 3/4
● A. 3 3/8
● B. 3 5/8
● C. 3 7/8
● D. 4 1/8
Correct Answer: B
Rationale: Convert to improper fractions with common denominator of 8: 2 3/4 = 22/8, 1
5/8 = 13/8, 3/4 = 6/8. Calculate: 22/8 + 13/8 − 6/8 = 29/8 = 3 5/8.
Q4: A medication order reads: "Give 0.25 mg." The available stock is 500 mcg tablets.
How many tablets should be given?
● A. 0.25 tablet
● B. 0.5 tablet
● C. 1 tablet
● D. 2 tablets
Correct Answer: B
Rationale: Convert mg to mcg: 0.25 mg × 1000 = 250 mcg. Then 250 mcg ÷ 500 mcg
per tablet = 0.5 tablet. Common error is forgetting to convert units, leading to answer A.
Q5: What is 15% of 240?
● A. 24
● B. 30
● C. 36
● D. 48
, Correct Answer: C
Rationale: Convert 15% to decimal: 0.15 × 240 = 36. Alternatively, find 10% (24) plus 5%
(12) = 36. This is a basic percent calculation commonly used in medication dosing.
Q6: A patient's weight decreased from 180 lb to 162 lb. What is the percent decrease in
weight?
● A. 8%
● B. 10%
● C. 12%
● D. 18%
Correct Answer: B
Rationale: Percent decrease = (original − new) ÷ original × 100. (180 − 162) ÷ 180 × 100
= 18 ÷ 180 × 100 = 10%. Common error is dividing by the new value (162) instead of the
original.
Q7: Calculate: 3.75 × 0.24
● A. 0.75
● B. 0.85
● C. 0.90
● D. 0.95
Correct Answer: C
Rationale: Multiply ignoring decimals: 375 × 24 = 9000. Count total decimal places: 2 + 2
= 4. Place decimal: 0.9000 = 0.90. Common error is misplacing the decimal, resulting in
9.0 or 0.09.
Q8: A hospital has 450 beds. If 72% of the beds are occupied, how many beds are
occupied?
● A. 300