PN DOSAGE CALCULATION EXAM QUESTIONS AND VERIFIED ANSWERS | 100% CORRECT |
GRADE A+
CORE DOMAINS
• Metric, Household, and Apothecary Conversions
• Oral and Enteral Medication Calculations
• Injectable Medication Calculations
• Reconstitution and Solution Preparation
• IV Flow Rate and Infusion Calculations
• Weight-Based and Pediatric Dosage Calculations
• Critical Care and High-Alert Medication Calculations
• Safe Dose Range and Medication Reconciliation
• Dimensional Analysis and Ratio-Proportion
• Documentation, Rounding, and Patient Safety
INTRODUCTION
This comprehensive examination is designed for practical nursing students preparing for a PN
Dosage Calculation Exam. It contains verified questions with correct answers and detailed
rationales covering medication conversions, oral and injectable calculations, reconstitution, IV
flow rates, weight-based dosing, and high-alert medication calculations. The examination
emphasizes clinical judgment, accurate calculation, rounding rules, and patient safety. Each
question includes a correct answer and a rationale to reinforce safe medication administration
practices.
SECTION ONE: QUESTIONS 1–100
1. Convert 2.5 g to mg.
A. 25 mg
B. 250 mg
C. 2500 mg
D. 25,000 mg
C. 2500 mg
RATIONALE: 1 g = 1000 mg, so 2.5 × 1000 = 2500 mg.
,2. Convert 0.5 L to mL.
A. 50 mL
B. 100 mL
C. 250 mL
D. 500 mL
D. 500 mL
RATIONALE: 1 L = 1000 mL, so 0.5 × 1000 = 500 mL.
3. Convert 3 tsp to mL.
A. 15 mL
B. 10 mL
C. 5 mL
D. 20 mL
A. 15 mL
RATIONALE: 1 tsp = 5 mL, so 3 × 5 = 15 mL.
4. Convert 1 kg to lb.
A. 1 lb
B. 2 lb
C. 2.2 lb
D. 3.3 lb
C. 2.2 lb
RATIONALE: 1 kg = 2.2 lb.
5. Convert 60 mg to g.
A. 0.6 g
B. 0.06 g
C. 6 g
D. 600 g
B. 0.06 g
RATIONALE: 1 g = 1000 mg, so 60 ÷ 1000 = 0.06 g.
6. Order: 500 mg PO. Available: 250 mg tablets. How many tablets will the nurse administer?
A. 0.5 tablet
B. 1 tablet
, C. 1.5 tablets
D. 2 tablets
D. 2 tablets
RATIONALE: 500 mg ÷ 250 mg = 2 tablets.
7. Order: 0.25 mg PO. Available: 0.125 mg tablets. How many tablets will the nurse
administer?
A. 2 tablets
B. 1 tablet
C. 0.5 tablet
D. 3 tablets
A. 2 tablets
RATIONALE: 0.25 mg ÷ 0.125 mg = 2 tablets.
8. Order: 750 mg PO. Available: 500 mg tablets. How many tablets will the nurse administer?
A. 1 tablet
B. 1.25 tablets
C. 1.5 tablets
D. 2 tablets
C. 1.5 tablets
RATIONALE: 750 mg ÷ 500 mg = 1.5 tablets.
9. Order: 125 mcg PO. Available: 0.25 mg tablets. How many tablets will the nurse administer?
A. 1 tablet
B. 0.5 tablet
C. 2 tablets
D. 0.25 tablet
B. 0.5 tablet
RATIONALE: 0.25 mg = 250 mcg; 125 mcg ÷ 250 mcg = 0.5 tablet.
10. Order: 2 g PO. Available: 500 mg tablets. How many tablets will the nurse administer?
A. 2 tablets
B. 3 tablets
C. 5 tablets
D. 4 tablets
GRADE A+
CORE DOMAINS
• Metric, Household, and Apothecary Conversions
• Oral and Enteral Medication Calculations
• Injectable Medication Calculations
• Reconstitution and Solution Preparation
• IV Flow Rate and Infusion Calculations
• Weight-Based and Pediatric Dosage Calculations
• Critical Care and High-Alert Medication Calculations
• Safe Dose Range and Medication Reconciliation
• Dimensional Analysis and Ratio-Proportion
• Documentation, Rounding, and Patient Safety
INTRODUCTION
This comprehensive examination is designed for practical nursing students preparing for a PN
Dosage Calculation Exam. It contains verified questions with correct answers and detailed
rationales covering medication conversions, oral and injectable calculations, reconstitution, IV
flow rates, weight-based dosing, and high-alert medication calculations. The examination
emphasizes clinical judgment, accurate calculation, rounding rules, and patient safety. Each
question includes a correct answer and a rationale to reinforce safe medication administration
practices.
SECTION ONE: QUESTIONS 1–100
1. Convert 2.5 g to mg.
A. 25 mg
B. 250 mg
C. 2500 mg
D. 25,000 mg
C. 2500 mg
RATIONALE: 1 g = 1000 mg, so 2.5 × 1000 = 2500 mg.
,2. Convert 0.5 L to mL.
A. 50 mL
B. 100 mL
C. 250 mL
D. 500 mL
D. 500 mL
RATIONALE: 1 L = 1000 mL, so 0.5 × 1000 = 500 mL.
3. Convert 3 tsp to mL.
A. 15 mL
B. 10 mL
C. 5 mL
D. 20 mL
A. 15 mL
RATIONALE: 1 tsp = 5 mL, so 3 × 5 = 15 mL.
4. Convert 1 kg to lb.
A. 1 lb
B. 2 lb
C. 2.2 lb
D. 3.3 lb
C. 2.2 lb
RATIONALE: 1 kg = 2.2 lb.
5. Convert 60 mg to g.
A. 0.6 g
B. 0.06 g
C. 6 g
D. 600 g
B. 0.06 g
RATIONALE: 1 g = 1000 mg, so 60 ÷ 1000 = 0.06 g.
6. Order: 500 mg PO. Available: 250 mg tablets. How many tablets will the nurse administer?
A. 0.5 tablet
B. 1 tablet
, C. 1.5 tablets
D. 2 tablets
D. 2 tablets
RATIONALE: 500 mg ÷ 250 mg = 2 tablets.
7. Order: 0.25 mg PO. Available: 0.125 mg tablets. How many tablets will the nurse
administer?
A. 2 tablets
B. 1 tablet
C. 0.5 tablet
D. 3 tablets
A. 2 tablets
RATIONALE: 0.25 mg ÷ 0.125 mg = 2 tablets.
8. Order: 750 mg PO. Available: 500 mg tablets. How many tablets will the nurse administer?
A. 1 tablet
B. 1.25 tablets
C. 1.5 tablets
D. 2 tablets
C. 1.5 tablets
RATIONALE: 750 mg ÷ 500 mg = 1.5 tablets.
9. Order: 125 mcg PO. Available: 0.25 mg tablets. How many tablets will the nurse administer?
A. 1 tablet
B. 0.5 tablet
C. 2 tablets
D. 0.25 tablet
B. 0.5 tablet
RATIONALE: 0.25 mg = 250 mcg; 125 mcg ÷ 250 mcg = 0.5 tablet.
10. Order: 2 g PO. Available: 500 mg tablets. How many tablets will the nurse administer?
A. 2 tablets
B. 3 tablets
C. 5 tablets
D. 4 tablets
