NURSING DOSAGE CALCULATION COMPREHENSIVE
EXAM PRACTICE QUESTIONS AND ANSWERS: THE
MOST RECENT AND COMPREHENSIVE VERSION WITH
VERIFIED ANSWERS; GUARANTEED PASS WITH
INSTANT PDF DOWNLOAD.
Exam Overview:
This 150-question multiple-choice examination assesses competency in nursing dosage
calculation across foundational mathematics, dimensional analysis, ratio-proportion, IV flow
rates, infusion pump calculations, weight-based dosing, pediatric and geriatric calculations, high-
alert medications, critical care drips, titration protocols, parenteral nutrition, insulin,
anticoagulants, safe medication practices, legal/ethical considerations, medication safety
standards, rounding rules, unit conversions (metric, apothecary, household), reconstitution, and
real-world clinical decision-making.
The exam is divided into three sections of 50 questions each. Each question has four options (A–
D). The correct answer is bolded. Rationales are provided in italics.
1. A provider orders 500 mg of a medication. Available tablets are 250 mg
each. How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 3 tablets
Rationale: 500 mg ÷ 250 mg = 2 tablets.
2. Convert 0.75 g to milligrams.
A. 7.5 mg
B. 75 mg
C. 750 mg
D. 7500 mg
Rationale: 1 g = 1000 mg; 0.75 × 1000 = 750 mg.
,3. An order reads 1.5 L IV over 12 hours. What is the hourly rate?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 175 mL/hr
Rationale: 1500 mL ÷ 12 hr = 125 mL/hr.
4. The order is 0.25 mg. Available is 125 mcg. How many tablets?
A. 1 tablet
B. 2 tablets
C. 0.5 tablet
D. 3 tablets
Rationale: 0.25 mg = 250 mcg; 250 ÷ 125 = 2 tablets.
5. A child weighs 22 lb. Convert to kilograms.
A. 5 kg
B. 8 kg
C. 10 kg
D. 12 kg
Rationale: 22 ÷ 2.2 = 10 kg.
6. Order: 5 mg/kg/day for a 20 kg child. What is total daily dose?
A. 25 mg
B. 50 mg
C. 100 mg
D. 200 mg
Rationale: 5 × 20 = 100 mg/day.
7. A vial contains 1 g in 10 mL. How many mL for 250 mg?
A. 1 mL
B. 2.5 mL
, C. 5 mL
D. 10 mL
Rationale: 1000 mg in 10 mL → 250 mg = 2.5 mL.
8. IV order: 1000 mL over 8 hours. Drop factor 15 gtt/mL. gtt/min?
A. 25
B. 30
C. 31
D. 40
Rationale: (1000×15)/(8×60)=31.25≈31 gtt/min.
9. Safe dose range is 10–15 mg/kg. Child weighs 30 kg. Ordered 500 mg. Is it
safe?
A. Yes, below range
B. Yes, within range
C. No, above range
D. No, below range
Rationale: Range 300–450 mg; 500 mg exceeds maximum.
10.Heparin 25,000 units in 500 mL. Order: 1000 units/hr. mL/hr?
A. 10
B. 15
C. 20
D. 25
Rationale: 50 units/mL; 1000 ÷ 50 = 20 mL/hr.
11.Convert 2 tsp to mL.
A. 5 mL
B. 10 mL
C. 15 mL
, D. 20 mL
Rationale: 1 tsp = 5 mL.
12.Insulin order: 12 units. Syringe marked in 100 units/mL. Volume?
A. 0.012 mL
B. 0.1 mL
C. 0.12 mL
D. 1.2 mL
Rationale: 12 ÷ 100 = 0.12 mL.
13.Order: 2.5 mg. Available: 5 mg/5 mL. Volume?
A. 1 mL
B. 2.5 mL
C. 3 mL
D. 5 mL
Rationale: 5 mg in 5 mL → 2.5 mg = 2.5 mL.
14.IV 250 mL over 2 hours. mL/hr?
A. 100
B. 125
C. 150
D. 200
Rationale: 250 ÷ 2 = 125 mL/hr.
15.Dopamine 400 mg in 250 mL. Order 5 mcg/kg/min for 70 kg. mL/hr?
A. 6.6
B. 8.2
C. 13.1
D. 20
Rationale: 400 mg=400,000 mcg. 400,000/250=1600 mcg/mL. Required:
5×70=350 mcg/min. 350÷1600=0.218 mL/min=13.1 mL/hr.
EXAM PRACTICE QUESTIONS AND ANSWERS: THE
MOST RECENT AND COMPREHENSIVE VERSION WITH
VERIFIED ANSWERS; GUARANTEED PASS WITH
INSTANT PDF DOWNLOAD.
Exam Overview:
This 150-question multiple-choice examination assesses competency in nursing dosage
calculation across foundational mathematics, dimensional analysis, ratio-proportion, IV flow
rates, infusion pump calculations, weight-based dosing, pediatric and geriatric calculations, high-
alert medications, critical care drips, titration protocols, parenteral nutrition, insulin,
anticoagulants, safe medication practices, legal/ethical considerations, medication safety
standards, rounding rules, unit conversions (metric, apothecary, household), reconstitution, and
real-world clinical decision-making.
The exam is divided into three sections of 50 questions each. Each question has four options (A–
D). The correct answer is bolded. Rationales are provided in italics.
1. A provider orders 500 mg of a medication. Available tablets are 250 mg
each. How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 3 tablets
Rationale: 500 mg ÷ 250 mg = 2 tablets.
2. Convert 0.75 g to milligrams.
A. 7.5 mg
B. 75 mg
C. 750 mg
D. 7500 mg
Rationale: 1 g = 1000 mg; 0.75 × 1000 = 750 mg.
,3. An order reads 1.5 L IV over 12 hours. What is the hourly rate?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 175 mL/hr
Rationale: 1500 mL ÷ 12 hr = 125 mL/hr.
4. The order is 0.25 mg. Available is 125 mcg. How many tablets?
A. 1 tablet
B. 2 tablets
C. 0.5 tablet
D. 3 tablets
Rationale: 0.25 mg = 250 mcg; 250 ÷ 125 = 2 tablets.
5. A child weighs 22 lb. Convert to kilograms.
A. 5 kg
B. 8 kg
C. 10 kg
D. 12 kg
Rationale: 22 ÷ 2.2 = 10 kg.
6. Order: 5 mg/kg/day for a 20 kg child. What is total daily dose?
A. 25 mg
B. 50 mg
C. 100 mg
D. 200 mg
Rationale: 5 × 20 = 100 mg/day.
7. A vial contains 1 g in 10 mL. How many mL for 250 mg?
A. 1 mL
B. 2.5 mL
, C. 5 mL
D. 10 mL
Rationale: 1000 mg in 10 mL → 250 mg = 2.5 mL.
8. IV order: 1000 mL over 8 hours. Drop factor 15 gtt/mL. gtt/min?
A. 25
B. 30
C. 31
D. 40
Rationale: (1000×15)/(8×60)=31.25≈31 gtt/min.
9. Safe dose range is 10–15 mg/kg. Child weighs 30 kg. Ordered 500 mg. Is it
safe?
A. Yes, below range
B. Yes, within range
C. No, above range
D. No, below range
Rationale: Range 300–450 mg; 500 mg exceeds maximum.
10.Heparin 25,000 units in 500 mL. Order: 1000 units/hr. mL/hr?
A. 10
B. 15
C. 20
D. 25
Rationale: 50 units/mL; 1000 ÷ 50 = 20 mL/hr.
11.Convert 2 tsp to mL.
A. 5 mL
B. 10 mL
C. 15 mL
, D. 20 mL
Rationale: 1 tsp = 5 mL.
12.Insulin order: 12 units. Syringe marked in 100 units/mL. Volume?
A. 0.012 mL
B. 0.1 mL
C. 0.12 mL
D. 1.2 mL
Rationale: 12 ÷ 100 = 0.12 mL.
13.Order: 2.5 mg. Available: 5 mg/5 mL. Volume?
A. 1 mL
B. 2.5 mL
C. 3 mL
D. 5 mL
Rationale: 5 mg in 5 mL → 2.5 mg = 2.5 mL.
14.IV 250 mL over 2 hours. mL/hr?
A. 100
B. 125
C. 150
D. 200
Rationale: 250 ÷ 2 = 125 mL/hr.
15.Dopamine 400 mg in 250 mL. Order 5 mcg/kg/min for 70 kg. mL/hr?
A. 6.6
B. 8.2
C. 13.1
D. 20
Rationale: 400 mg=400,000 mcg. 400,000/250=1600 mcg/mL. Required:
5×70=350 mcg/min. 350÷1600=0.218 mL/min=13.1 mL/hr.
