BSN HESI 215 DOSAGE CALCULATION EXAM 2026/2027 |
Updated | Nightingale Grade A Certification | Questions &
Answers | Pass Guaranteed - A+ Graded
SECTION 1: BASIC CALCULATION METHODS & FORMULA MASTERY - Q1-25
Q1. Using the basic formula D/H × Q = X, solve: The provider orders acetaminophen 650
mg PO. Available tablets are 325 mg each. How many tablets should the nurse
administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets [CORRECT]
D. 3 tablets
Rationale: 650 mg ÷ 325 mg = 2 tablets. Option A represents half the dose, B represents
a decimal error (1.5 would be 487.5 mg), and D represents triple the ordered dose.
Correct Answer: C
Q2. A provider orders furosemide 80 mg IV. The vial is labeled 40 mg/4 mL. Using
dimensional analysis, how many mL should the nurse draw up?
A. 4 mL
B. 6 mL
C. 8 mL [CORRECT]
D. 10 mL
Rationale: (80 mg / 40 mg) × 4 mL = 8 mL. Option A is the concentration per 40 mg, B is
a mid-calculation error, and D adds an extra 2 mL incorrectly.
,Correct Answer: C
Q3. Convert 2.5 grams to milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg [CORRECT]
D. 25,000 mg
Rationale: 1 gram = 1,000 mg; therefore 2.5 g × 1,000 = 2,500 mg. Option A moves the
decimal one place, B moves it two places, and D moves it four places.
Correct Answer: C
Q4. The order reads: Give morphine sulfate 0.3 g IM. Available: morphine sulfate 10
mg/mL. How many mL should the nurse administer?
A. 3 mL
B. 30 mL [CORRECT]
C. 0.3 mL
D. 300 mL
Rationale: Convert 0.3 g to 300 mg; 300 mg ÷ 10 mg/mL = 30 mL. Option A fails to
convert grams to milligrams, C is a decimal placement error, and D is an extra zero error.
Correct Answer: B
Q5. A patient is to receive 0.125 mg of digoxin. The tablets available are 0.25 mg. How
many tablets should the nurse give?
A. 2 tablets
B. 1 tablet
,C. 0.5 tablet [CORRECT]
D. 0.25 tablet
Rationale: 0.125 mg ÷ 0.25 mg = 0.5 tablet. Option A inverts the division, B gives the full
available strength, and D gives one-quarter of the available strength.
Correct Answer: C
Q6. Convert 7,500 mcg to mg.
A. 750 mg
B. 75 mg
C. 7.5 mg [CORRECT]
D. 0.75 mg
Rationale: 1 mg = 1,000 mcg; 7,500 ÷ 1,000 = 7.5 mg. Option A divides by 10, B divides
by 100, and D divides by 10,000.
Correct Answer: C
Q7. The order is for potassium chloride 40 mEq PO. Available liquid is 20 mEq/15 mL.
How many mL should the nurse administer?
A. 15 mL
B. 20 mL
C. 30 mL [CORRECT]
D. 40 mL
Rationale: (40 mEq / 20 mEq) × 15 mL = 30 mL. Option A is the volume for 20 mEq only,
B confuses mEq with mL, and D confuses the ordered amount with volume.
Correct Answer: C
, Q8. Solve using ratio-proportion: If 250 mg/5 mL, then X mg/12 mL. What is X?
A. 500 mg
B. 600 mg [CORRECT]
C. 750 mg
D. 1,000 mg
Rationale: 250/5 = X/12; 5X = 3,000; X = 600 mg. Option A doubles incorrectly, C uses
250 × 3, and D uses 250 × 4.
Correct Answer: B
Q9. Convert 0.075 mg to micrograms.
A. 7.5 mcg
B. 75 mcg [CORRECT]
C. 750 mcg
D. 7,500 mcg
Rationale: 0.075 mg × 1,000 = 75 mcg. Option A moves decimal one place, C moves it
three places, and D moves it four places.
Correct Answer: B
Q10. The provider orders heparin 5,000 units subcutaneous. Available: heparin 10,000
units/mL. How many mL should the nurse administer?
A. 2 mL
B. 1 mL
C. 0.5 mL [CORRECT]
D. 0.25 mL
Updated | Nightingale Grade A Certification | Questions &
Answers | Pass Guaranteed - A+ Graded
SECTION 1: BASIC CALCULATION METHODS & FORMULA MASTERY - Q1-25
Q1. Using the basic formula D/H × Q = X, solve: The provider orders acetaminophen 650
mg PO. Available tablets are 325 mg each. How many tablets should the nurse
administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets [CORRECT]
D. 3 tablets
Rationale: 650 mg ÷ 325 mg = 2 tablets. Option A represents half the dose, B represents
a decimal error (1.5 would be 487.5 mg), and D represents triple the ordered dose.
Correct Answer: C
Q2. A provider orders furosemide 80 mg IV. The vial is labeled 40 mg/4 mL. Using
dimensional analysis, how many mL should the nurse draw up?
A. 4 mL
B. 6 mL
C. 8 mL [CORRECT]
D. 10 mL
Rationale: (80 mg / 40 mg) × 4 mL = 8 mL. Option A is the concentration per 40 mg, B is
a mid-calculation error, and D adds an extra 2 mL incorrectly.
,Correct Answer: C
Q3. Convert 2.5 grams to milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg [CORRECT]
D. 25,000 mg
Rationale: 1 gram = 1,000 mg; therefore 2.5 g × 1,000 = 2,500 mg. Option A moves the
decimal one place, B moves it two places, and D moves it four places.
Correct Answer: C
Q4. The order reads: Give morphine sulfate 0.3 g IM. Available: morphine sulfate 10
mg/mL. How many mL should the nurse administer?
A. 3 mL
B. 30 mL [CORRECT]
C. 0.3 mL
D. 300 mL
Rationale: Convert 0.3 g to 300 mg; 300 mg ÷ 10 mg/mL = 30 mL. Option A fails to
convert grams to milligrams, C is a decimal placement error, and D is an extra zero error.
Correct Answer: B
Q5. A patient is to receive 0.125 mg of digoxin. The tablets available are 0.25 mg. How
many tablets should the nurse give?
A. 2 tablets
B. 1 tablet
,C. 0.5 tablet [CORRECT]
D. 0.25 tablet
Rationale: 0.125 mg ÷ 0.25 mg = 0.5 tablet. Option A inverts the division, B gives the full
available strength, and D gives one-quarter of the available strength.
Correct Answer: C
Q6. Convert 7,500 mcg to mg.
A. 750 mg
B. 75 mg
C. 7.5 mg [CORRECT]
D. 0.75 mg
Rationale: 1 mg = 1,000 mcg; 7,500 ÷ 1,000 = 7.5 mg. Option A divides by 10, B divides
by 100, and D divides by 10,000.
Correct Answer: C
Q7. The order is for potassium chloride 40 mEq PO. Available liquid is 20 mEq/15 mL.
How many mL should the nurse administer?
A. 15 mL
B. 20 mL
C. 30 mL [CORRECT]
D. 40 mL
Rationale: (40 mEq / 20 mEq) × 15 mL = 30 mL. Option A is the volume for 20 mEq only,
B confuses mEq with mL, and D confuses the ordered amount with volume.
Correct Answer: C
, Q8. Solve using ratio-proportion: If 250 mg/5 mL, then X mg/12 mL. What is X?
A. 500 mg
B. 600 mg [CORRECT]
C. 750 mg
D. 1,000 mg
Rationale: 250/5 = X/12; 5X = 3,000; X = 600 mg. Option A doubles incorrectly, C uses
250 × 3, and D uses 250 × 4.
Correct Answer: B
Q9. Convert 0.075 mg to micrograms.
A. 7.5 mcg
B. 75 mcg [CORRECT]
C. 750 mcg
D. 7,500 mcg
Rationale: 0.075 mg × 1,000 = 75 mcg. Option A moves decimal one place, C moves it
three places, and D moves it four places.
Correct Answer: B
Q10. The provider orders heparin 5,000 units subcutaneous. Available: heparin 10,000
units/mL. How many mL should the nurse administer?
A. 2 mL
B. 1 mL
C. 0.5 mL [CORRECT]
D. 0.25 mL
