BSN HESI 215 DOSAGE CALCULATION EXAM V1 2026/2027 |
Questions & Verified Answers 100% Correct | Grade A |
Nightingale | Pass Guaranteed - A+ Graded
Section 1: Basic Conversions & Ratios
Q1: The provider orders 0.5 g of a medication. The pharmacy sends 250 mg tablets.
How many tablets will the nurse administer?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets [CORRECT]
D. 4 tablets
Correct Answer: C
Rationale: The correct answer is C. On HESI V1, remember to always convert grams to
milligrams before you divide—0.5 g equals 500 mg, and 500 divided by 250 mg per
tablet gives you 2 tablets. Always double-check your decimal placement so you don't
accidentally underdose or overdose.
Q2: A patient weighs 154 lb. The medication reference recommends dosing based on
kilograms. What is the patient's weight in kg?
A. 63.5 kg
,B. 70 kg [CORRECT]
C. 77 kg
D. 338.8 kg
Correct Answer: B
Rationale: The correct answer is B. The correct formula setup is dividing the patient's
weight in pounds by 2.2, so 154 divided by 2.2 equals exactly 70 kg. That's right
because when you convert lbs to kg, you always divide by 2.2—multiplying gives you a
wildly unrealistic number.
Q3: A parent needs to give their child 15 mL of liquid acetaminophen at home. The
family only has a household measuring teaspoon available. How many teaspoons
should the nurse instruct them to give?
A. 1 teaspoon
B. 2 teaspoons
C. 3 teaspoons [CORRECT]
D. 5 teaspoons
Correct Answer: C
Rationale: The correct answer is C. One teaspoon equals 5 mL, so when you divide 15
mL by 5 mL per teaspoon, you get 3 teaspoons. On HESI, watch for the tablespoon
trap—one tablespoon is 15 mL, but the question specifically asked for teaspoons.
, Q4: The medication order reads 0.125 g. The pharmacy label lists the dosage strength
in milligrams. How many milligrams does the patient need?
A. 1.25 mg
B. 12.5 mg
C. 125 mg [CORRECT]
D. 1,250 mg
Correct Answer: C
Rationale: The correct answer is C. Since there are 1,000 mg in every gram, you multiply
0.125 by 1,000 and move the decimal three places to the right, giving you 125 mg.
Always double-check your decimal placement so you don't turn a simple conversion into
a tenfold dosing error.
Q5: A medication strength is written as 150 mcg. How many milligrams is this?
A. 15 mg
B. 1.5 mg
C. 0.15 mg [CORRECT]
D. 0.015 mg
Correct Answer: C
Rationale: The correct answer is C. To convert micrograms to milligrams, you divide by
1,000 because a milligram is larger than a microgram—so 150 mcg becomes 0.15 mg.
Questions & Verified Answers 100% Correct | Grade A |
Nightingale | Pass Guaranteed - A+ Graded
Section 1: Basic Conversions & Ratios
Q1: The provider orders 0.5 g of a medication. The pharmacy sends 250 mg tablets.
How many tablets will the nurse administer?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets [CORRECT]
D. 4 tablets
Correct Answer: C
Rationale: The correct answer is C. On HESI V1, remember to always convert grams to
milligrams before you divide—0.5 g equals 500 mg, and 500 divided by 250 mg per
tablet gives you 2 tablets. Always double-check your decimal placement so you don't
accidentally underdose or overdose.
Q2: A patient weighs 154 lb. The medication reference recommends dosing based on
kilograms. What is the patient's weight in kg?
A. 63.5 kg
,B. 70 kg [CORRECT]
C. 77 kg
D. 338.8 kg
Correct Answer: B
Rationale: The correct answer is B. The correct formula setup is dividing the patient's
weight in pounds by 2.2, so 154 divided by 2.2 equals exactly 70 kg. That's right
because when you convert lbs to kg, you always divide by 2.2—multiplying gives you a
wildly unrealistic number.
Q3: A parent needs to give their child 15 mL of liquid acetaminophen at home. The
family only has a household measuring teaspoon available. How many teaspoons
should the nurse instruct them to give?
A. 1 teaspoon
B. 2 teaspoons
C. 3 teaspoons [CORRECT]
D. 5 teaspoons
Correct Answer: C
Rationale: The correct answer is C. One teaspoon equals 5 mL, so when you divide 15
mL by 5 mL per teaspoon, you get 3 teaspoons. On HESI, watch for the tablespoon
trap—one tablespoon is 15 mL, but the question specifically asked for teaspoons.
, Q4: The medication order reads 0.125 g. The pharmacy label lists the dosage strength
in milligrams. How many milligrams does the patient need?
A. 1.25 mg
B. 12.5 mg
C. 125 mg [CORRECT]
D. 1,250 mg
Correct Answer: C
Rationale: The correct answer is C. Since there are 1,000 mg in every gram, you multiply
0.125 by 1,000 and move the decimal three places to the right, giving you 125 mg.
Always double-check your decimal placement so you don't turn a simple conversion into
a tenfold dosing error.
Q5: A medication strength is written as 150 mcg. How many milligrams is this?
A. 15 mg
B. 1.5 mg
C. 0.15 mg [CORRECT]
D. 0.015 mg
Correct Answer: C
Rationale: The correct answer is C. To convert micrograms to milligrams, you divide by
1,000 because a milligram is larger than a microgram—so 150 mcg becomes 0.15 mg.
