BSN 215
HESI Dosage Calculation | Practice Questions,
Answers & Detailed Rationales | 2026
Resource Features
➢ BSN 215 HESI Dosage Calculation practice questions
➢ Correct answers for self-assessment
➢ Step-by-step calculation solutions
➢ Detailed rationales
➢ Dimensional-analysis practice
➢ Nursing-math review
, BSN 215 HESI Dosage Calculation | Practice
Questions, Answers & Detailed Rationales |
2026
Question 1
How do you convert pounds (lb) to kilograms (kg)?
A) Multiply pounds by 2.2
B) Divide pounds by 2.2
C) Add 2.2 to pounds
D) Subtract 2.2 from pounds
Answer: B) Divide pounds by 2.2
Rationale: To convert pounds to kilograms, divide the weight in
pounds by 2.2 (lb ÷ 2.2 = kg). This is a fundamental conversion
used frequently in healthcare settings for medication dosing, as
most medications are dosed based on weight in kilograms. For
example, a patient weighing 154 lb would be 70 kg (154 ÷ 2.2 =
70).
Question 2
,How do you convert kilograms (kg) to pounds (lb)?
A) Divide kilograms by 2.2
B) Multiply kilograms by 2.2
C) Add 2.2 to kilograms
D) Subtract 2.2 from kilograms
Answer: B) Multiply kilograms by 2.2
Rationale: To convert kilograms to pounds, multiply the weight
in kilograms by 2.2 (kg × 2.2 = lb). This conversion is often used
when communicating weight information to patients or families
who may be more familiar with pounds, or when converting from
metric to standard measurements. For example, a patient
weighing 70 kg would be 154 lb (70 × 2.2 = 154).
Question 3
How many milligrams (mg) are in 1 gram (g)?
A) 10 mg
B) 100 mg
C) 1,000 mg
D) 10,000 mg
Answer: C) 1,000 mg
, Rationale: There are 1,000 milligrams in 1 gram. This is a basic
metric system conversion that is essential for medication
calculations. Understanding this conversion is critical because
many medications are ordered in grams but may need to be
administered in milligrams, or vice versa. For example, 2 grams
equals 2,000 mg.
Question 4
How many micrograms (mcg) are in 1 milligram (mg)?
A) 10 mcg
B) 100 mcg
C) 1,000 mcg
D) 10,000 mcg
Answer: C) 1,000 mcg
Rationale: There are 1,000 micrograms in 1 milligram. This
conversion is particularly important when calculating doses of
potent medications such as digoxin, levothyroxine, or fentanyl,
which are often prescribed in micrograms. Accurate conversion
between mcg and mg is essential to prevent medication errors
that could be life-threatening.
HESI Dosage Calculation | Practice Questions,
Answers & Detailed Rationales | 2026
Resource Features
➢ BSN 215 HESI Dosage Calculation practice questions
➢ Correct answers for self-assessment
➢ Step-by-step calculation solutions
➢ Detailed rationales
➢ Dimensional-analysis practice
➢ Nursing-math review
, BSN 215 HESI Dosage Calculation | Practice
Questions, Answers & Detailed Rationales |
2026
Question 1
How do you convert pounds (lb) to kilograms (kg)?
A) Multiply pounds by 2.2
B) Divide pounds by 2.2
C) Add 2.2 to pounds
D) Subtract 2.2 from pounds
Answer: B) Divide pounds by 2.2
Rationale: To convert pounds to kilograms, divide the weight in
pounds by 2.2 (lb ÷ 2.2 = kg). This is a fundamental conversion
used frequently in healthcare settings for medication dosing, as
most medications are dosed based on weight in kilograms. For
example, a patient weighing 154 lb would be 70 kg (154 ÷ 2.2 =
70).
Question 2
,How do you convert kilograms (kg) to pounds (lb)?
A) Divide kilograms by 2.2
B) Multiply kilograms by 2.2
C) Add 2.2 to kilograms
D) Subtract 2.2 from kilograms
Answer: B) Multiply kilograms by 2.2
Rationale: To convert kilograms to pounds, multiply the weight
in kilograms by 2.2 (kg × 2.2 = lb). This conversion is often used
when communicating weight information to patients or families
who may be more familiar with pounds, or when converting from
metric to standard measurements. For example, a patient
weighing 70 kg would be 154 lb (70 × 2.2 = 154).
Question 3
How many milligrams (mg) are in 1 gram (g)?
A) 10 mg
B) 100 mg
C) 1,000 mg
D) 10,000 mg
Answer: C) 1,000 mg
, Rationale: There are 1,000 milligrams in 1 gram. This is a basic
metric system conversion that is essential for medication
calculations. Understanding this conversion is critical because
many medications are ordered in grams but may need to be
administered in milligrams, or vice versa. For example, 2 grams
equals 2,000 mg.
Question 4
How many micrograms (mcg) are in 1 milligram (mg)?
A) 10 mcg
B) 100 mcg
C) 1,000 mcg
D) 10,000 mcg
Answer: C) 1,000 mcg
Rationale: There are 1,000 micrograms in 1 milligram. This
conversion is particularly important when calculating doses of
potent medications such as digoxin, levothyroxine, or fentanyl,
which are often prescribed in micrograms. Accurate conversion
between mcg and mg is essential to prevent medication errors
that could be life-threatening.
