BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest Update 2026/2027) Questions and
Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **202...
OBJECTIVE ASSESSMENT - EXAM
BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest
Update 2026/2027) Questions and Verified Answers |100% Correct
| Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027
Official Exam
75 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Dosage Calculation Fundamentals Pediatric & Geriatric Dosing
Oral & Parenteral Medications Medication Safety
IV Infusion Calculations Clinical Applications
COVER PAGE - 1
, SECTION 1 | Dosage Calculation Fundamentals | Q1-Q15 | BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest Update 2026/2027) Questions and
S1 Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027 Official Exam 2026/2027
Q1 Question 1 of 75
A nurse is preparing to administer metformin 500 mg PO twice daily to a 58-year-old patient with type 2 diabetes.
The medication is available in 500 mg tablets. How many tablets should the nurse administer per dose?
A. 2 tablets per dose, because the nurse should double the dose for twice daily dosing.
B. 1 tablet per dose, because the ordered dose (500 mg) equals the available concentration (500 mg per
tablet).
C. 0.5 tablets per dose, because the nurse should halve the dose for safety.
D. 4 tablets per dose, because twice daily means two tablets each time.
Correct Answer: B
Rationale:
Using the formula: Desired / Have = 500 mg / 500 mg per tablet = 1 tablet. The ordered dose matches the available tablet strength,
so one tablet is correct. Doubling, halving, or multiplying by the frequency are all incorrect applications of dosage calculation.
Q2 Question 2 of 75
A physician orders amoxicillin 250 mg PO every 8 hours for a 45-year-old patient with a respiratory infection. The
pharmacy dispenses amoxicillin oral suspension 250 mg per 5 mL. How many mL should the nurse administer per
dose?
A. 2.5 mL per dose, calculated as half of the ordered dose.
B. 10 mL per dose, calculated as double the concentration volume.
C. 5 mL per dose, calculated as 250 mg divided by (250 mg per 5 mL) times 5 mL.
D. 1 mL per dose, calculated as 250 mg divided by 250.
Correct Answer: C
Rationale:
Using D/H x V: 250 mg / (250 mg/5 mL) x 5 mL = 5 mL. The ordered dose equals the available concentration per 5 mL, so 5 mL is
correct. Halving, doubling, or dividing without the volume factor all produce incorrect results.
BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest Update 2026/2027) Questions and Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027 Official Exam — 2026/2027 | Passing Score:
80%
Page 2 of 30
, Q3 Question 3 of 75
A nurse needs to convert 0.25 grams of a medication to milligrams. Which calculation is correct?
A. 25 mg, because 0.25 grams equals 25 milligrams by moving the decimal one place.
B. 2.5 mg, because 0.25 grams equals 2.5 milligrams.
C. 2500 mg, because 0.25 grams equals 2500 milligrams by multiplying by 10,000.
D. 250 mg, because 1 gram equals 1000 milligrams, so 0.25 x 1000 = 250 mg.
Correct Answer: D
Rationale:
1 gram = 1000 mg, so 0.25 g x 1000 = 250 mg. Moving the decimal one place gives 25 mg (wrong), two places gives 2.5 mg
(wrong), and multiplying by 10,000 gives 2500 mg (wrong).
Q4 Question 4 of 75
A provider orders digoxin 0.125 mg PO daily. The medication is available as 0.25 mg per tablet. How many tablets
should the nurse administer?
A. 0.5 tablets per dose, calculated as 0.125 mg divided by 0.25 mg per tablet.
B. 2 tablets per dose, calculated as 0.25 divided by 0.125.
C. 1 tablet per dose, because the nurse rounds to the nearest whole tablet.
D. 0.25 tablets per dose, calculated as 0.125 divided by 0.5.
Correct Answer: A
Rationale:
D/H = 0.125 mg / 0.25 mg per tablet = 0.5 tablets. The ordered dose is half the available tablet strength, so half a tablet is correct.
Dividing in reverse, rounding up, or using wrong denominators all produce errors.
Q5 Question 5 of 75
A nurse is calculating a medication dose using the ratio and proportion method. The order is for 80 mg of a
medication. The medication label reads 100 mg per 2 mL. Using ratio and proportion, what is the correct dose in
mL?
A. 0.8 mL, calculated as 80 divided by 100.
B. 1.6 mL, calculated as 100 mg : 2 mL = 80 mg : x mL, solving for x = (80 x 2) / 100 = 1.6 mL.
C. 2.5 mL, calculated as 100 divided by (80 divided by 2).
D. 3.2 mL, calculated as 80 times 2 times 2.
Correct Answer: B
Rationale:
Setting up the proportion 100/2 = 80/x and cross-multiplying: 100x = 160, x = 1.6 mL. Simply dividing 80/100 gives 0.8 (wrong
units), 2.5 uses incorrect arithmetic, and 3.2 doubles incorrectly.
BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest Update 2026/2027) Questions and Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027 Official Exam — 2026/2027 | Passing Score:
80%
Page 3 of 30
Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **202...
OBJECTIVE ASSESSMENT - EXAM
BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest
Update 2026/2027) Questions and Verified Answers |100% Correct
| Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027
Official Exam
75 100% 2026/2027
QUESTIONS VERIFIED ANSWERS EDITION
TOPICS COVERED
Dosage Calculation Fundamentals Pediatric & Geriatric Dosing
Oral & Parenteral Medications Medication Safety
IV Infusion Calculations Clinical Applications
COVER PAGE - 1
, SECTION 1 | Dosage Calculation Fundamentals | Q1-Q15 | BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest Update 2026/2027) Questions and
S1 Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027 Official Exam 2026/2027
Q1 Question 1 of 75
A nurse is preparing to administer metformin 500 mg PO twice daily to a 58-year-old patient with type 2 diabetes.
The medication is available in 500 mg tablets. How many tablets should the nurse administer per dose?
A. 2 tablets per dose, because the nurse should double the dose for twice daily dosing.
B. 1 tablet per dose, because the ordered dose (500 mg) equals the available concentration (500 mg per
tablet).
C. 0.5 tablets per dose, because the nurse should halve the dose for safety.
D. 4 tablets per dose, because twice daily means two tablets each time.
Correct Answer: B
Rationale:
Using the formula: Desired / Have = 500 mg / 500 mg per tablet = 1 tablet. The ordered dose matches the available tablet strength,
so one tablet is correct. Doubling, halving, or multiplying by the frequency are all incorrect applications of dosage calculation.
Q2 Question 2 of 75
A physician orders amoxicillin 250 mg PO every 8 hours for a 45-year-old patient with a respiratory infection. The
pharmacy dispenses amoxicillin oral suspension 250 mg per 5 mL. How many mL should the nurse administer per
dose?
A. 2.5 mL per dose, calculated as half of the ordered dose.
B. 10 mL per dose, calculated as double the concentration volume.
C. 5 mL per dose, calculated as 250 mg divided by (250 mg per 5 mL) times 5 mL.
D. 1 mL per dose, calculated as 250 mg divided by 250.
Correct Answer: C
Rationale:
Using D/H x V: 250 mg / (250 mg/5 mL) x 5 mL = 5 mL. The ordered dose equals the available concentration per 5 mL, so 5 mL is
correct. Halving, doubling, or dividing without the volume factor all produce incorrect results.
BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest Update 2026/2027) Questions and Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027 Official Exam — 2026/2027 | Passing Score:
80%
Page 2 of 30
, Q3 Question 3 of 75
A nurse needs to convert 0.25 grams of a medication to milligrams. Which calculation is correct?
A. 25 mg, because 0.25 grams equals 25 milligrams by moving the decimal one place.
B. 2.5 mg, because 0.25 grams equals 2.5 milligrams.
C. 2500 mg, because 0.25 grams equals 2500 milligrams by multiplying by 10,000.
D. 250 mg, because 1 gram equals 1000 milligrams, so 0.25 x 1000 = 250 mg.
Correct Answer: D
Rationale:
1 gram = 1000 mg, so 0.25 g x 1000 = 250 mg. Moving the decimal one place gives 25 mg (wrong), two places gives 2.5 mg
(wrong), and multiplying by 10,000 gives 2500 mg (wrong).
Q4 Question 4 of 75
A provider orders digoxin 0.125 mg PO daily. The medication is available as 0.25 mg per tablet. How many tablets
should the nurse administer?
A. 0.5 tablets per dose, calculated as 0.125 mg divided by 0.25 mg per tablet.
B. 2 tablets per dose, calculated as 0.25 divided by 0.125.
C. 1 tablet per dose, because the nurse rounds to the nearest whole tablet.
D. 0.25 tablets per dose, calculated as 0.125 divided by 0.5.
Correct Answer: A
Rationale:
D/H = 0.125 mg / 0.25 mg per tablet = 0.5 tablets. The ordered dose is half the available tablet strength, so half a tablet is correct.
Dividing in reverse, rounding up, or using wrong denominators all produce errors.
Q5 Question 5 of 75
A nurse is calculating a medication dose using the ratio and proportion method. The order is for 80 mg of a
medication. The medication label reads 100 mg per 2 mL. Using ratio and proportion, what is the correct dose in
mL?
A. 0.8 mL, calculated as 80 divided by 100.
B. 1.6 mL, calculated as 100 mg : 2 mL = 80 mg : x mL, solving for x = (80 x 2) / 100 = 1.6 mL.
C. 2.5 mL, calculated as 100 divided by (80 divided by 2).
D. 3.2 mL, calculated as 80 times 2 times 2.
Correct Answer: B
Rationale:
Setting up the proportion 100/2 = 80/x and cross-multiplying: 100x = 160, x = 1.6 mL. Simply dividing 80/100 gives 0.8 (wrong
units), 2.5 uses incorrect arithmetic, and 3.2 doubles incorrectly.
BSN 215 HESI RN Specialty Dosage Calculation Exam (Latest Update 2026/2027) Questions and Verified Answers |100% Correct | Grade A - Nightingale 2026/2027 **2026/2027** — 2026/2027 Official Exam — 2026/2027 | Passing Score:
80%
Page 3 of 30
