RN Advanced Math Ability — 65 Questions with correct
answers and rationales 2026/2027 version A+ Graded
1. The provider orders amoxicillin 750 mg PO. Available: 250 mg/5 mL. How many mL should
the nurse administer?
A. 10 mL
B. 12 mL
C. 15 mL
D. 20 mL
Answer: C
Rationale: 750 ÷ 250 × 5 = 15 mL.
2. Order: acetaminophen 650 mg PO. Available: 325 mg tablets. How many tablets?
A. 1
B. 1.5
C. 2
D. 3
Answer: C
Rationale: 650 ÷ 325 = 2 tablets.
3. Order: furosemide 40 mg IV. Available: 10 mg/mL. How many mL?
A. 2 mL
B. 4 mL
C. 5 mL
D. 10 mL
Answer: B
Rationale: 40 ÷ 10 = 4 mL.
4. Order: morphine 6 mg IV. Available: 10 mg/mL. How many mL?
A. 0.4 mL
B. 0.5 mL
C. 0.6 mL
D. 1.6 mL
Answer: C
Rationale: 6 ÷ 10 = 0.6 mL.
,5. Order: prednisone 30 mg PO. Available: 10 mg tablets. How many tablets?
A. 1
B. 2
C. 3
D. 4
Answer: C
6. Order: cefazolin 1.5 g IV. Available: 500 mg/10 mL. How many mL?
A. 15 mL
B. 20 mL
C. 25 mL
D. 30 mL
Answer: D
Rationale: 1.5 g = 1,500 mg. 1,500 ÷ 500 × 10 = 30 mL.
7. Order: levothyroxine 0.075 mg PO. Available: 25 mcg tablets. How many tablets?
A. 1
B. 2
C. 3
D. 4
Answer: C
Rationale: 0.075 mg = 75 mcg. 75 ÷ 25 = 3 tablets.
8. Order: digoxin 0.125 mg PO. Available: 0.25 mg tablets. How many tablets?
A. ¼
B. ½
C. 1
D. 2
Answer: B
9. Order: ondansetron 8 mg IV. Available: 2 mg/mL. How many mL?
A. 2
B. 3
, C. 4
D. 8
Answer: C
10. Order: potassium chloride 30 mEq PO. Available: 10 mEq/5 mL. How many mL?
A. 10 mL
B. 15 mL
C. 20 mL
D. 25 mL
Answer: B
Weight-Based Calculations
11. A child weighs 22 kg. The prescription is 10 mg/kg/day divided into 2 equal doses. How
many mg per dose?
A. 55 mg
B. 100 mg
C. 110 mg
D. 220 mg
Answer: C
Rationale: 22 × 10 = 220 mg/day. 220 ÷ 2 = 110 mg/dose.
12. A patient weighs 70 kg. Medication is ordered at 5 mg/kg. What dose should be
administered?
A. 250 mg
B. 300 mg
C. 350 mg
D. 400 mg
Answer: C
13. Heparin is ordered at 18 units/kg/hr for a 75-kg patient. What is the hourly dose?
A. 1,050 units/hr
B. 1,250 units/hr
answers and rationales 2026/2027 version A+ Graded
1. The provider orders amoxicillin 750 mg PO. Available: 250 mg/5 mL. How many mL should
the nurse administer?
A. 10 mL
B. 12 mL
C. 15 mL
D. 20 mL
Answer: C
Rationale: 750 ÷ 250 × 5 = 15 mL.
2. Order: acetaminophen 650 mg PO. Available: 325 mg tablets. How many tablets?
A. 1
B. 1.5
C. 2
D. 3
Answer: C
Rationale: 650 ÷ 325 = 2 tablets.
3. Order: furosemide 40 mg IV. Available: 10 mg/mL. How many mL?
A. 2 mL
B. 4 mL
C. 5 mL
D. 10 mL
Answer: B
Rationale: 40 ÷ 10 = 4 mL.
4. Order: morphine 6 mg IV. Available: 10 mg/mL. How many mL?
A. 0.4 mL
B. 0.5 mL
C. 0.6 mL
D. 1.6 mL
Answer: C
Rationale: 6 ÷ 10 = 0.6 mL.
,5. Order: prednisone 30 mg PO. Available: 10 mg tablets. How many tablets?
A. 1
B. 2
C. 3
D. 4
Answer: C
6. Order: cefazolin 1.5 g IV. Available: 500 mg/10 mL. How many mL?
A. 15 mL
B. 20 mL
C. 25 mL
D. 30 mL
Answer: D
Rationale: 1.5 g = 1,500 mg. 1,500 ÷ 500 × 10 = 30 mL.
7. Order: levothyroxine 0.075 mg PO. Available: 25 mcg tablets. How many tablets?
A. 1
B. 2
C. 3
D. 4
Answer: C
Rationale: 0.075 mg = 75 mcg. 75 ÷ 25 = 3 tablets.
8. Order: digoxin 0.125 mg PO. Available: 0.25 mg tablets. How many tablets?
A. ¼
B. ½
C. 1
D. 2
Answer: B
9. Order: ondansetron 8 mg IV. Available: 2 mg/mL. How many mL?
A. 2
B. 3
, C. 4
D. 8
Answer: C
10. Order: potassium chloride 30 mEq PO. Available: 10 mEq/5 mL. How many mL?
A. 10 mL
B. 15 mL
C. 20 mL
D. 25 mL
Answer: B
Weight-Based Calculations
11. A child weighs 22 kg. The prescription is 10 mg/kg/day divided into 2 equal doses. How
many mg per dose?
A. 55 mg
B. 100 mg
C. 110 mg
D. 220 mg
Answer: C
Rationale: 22 × 10 = 220 mg/day. 220 ÷ 2 = 110 mg/dose.
12. A patient weighs 70 kg. Medication is ordered at 5 mg/kg. What dose should be
administered?
A. 250 mg
B. 300 mg
C. 350 mg
D. 400 mg
Answer: C
13. Heparin is ordered at 18 units/kg/hr for a 75-kg patient. What is the hourly dose?
A. 1,050 units/hr
B. 1,250 units/hr
