BSN HESI 215 DOSAGE CALCULATION EXAM V2 WITH COMPLETE QUESTIONS AND
VERIFIED SOLUTIONS
1. The provider prescribes acetaminophen 650 mg PO. Available: acetaminophen 325
mg/tablet. How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
Answer: C. 2 tablets
Rationale: 650 mg ÷ 325 mg/tablet = 2 tablets.
2. A patient is prescribed amoxicillin 500 mg PO. Available: 250 mg capsules. How many
capsules should the nurse administer?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Answer: B. 2 capsules
Rationale: 500 mg ÷ 250 mg/capsule = 2 capsules.
3. The prescription is for ibuprofen 400 mg PO. Available: 200 mg tablets. How many
tablets are required?
A. 1
B. 1.5
C. 2
D. 3
Answer: C. 2
Rationale: 400 ÷ 200 = 2 tablets.
,4. A patient is prescribed 750 mg of a medication. The medication is available as 250 mg
tablets. How many tablets should be given?
A. 2
B. 2.5
C. 3
D. 4
Answer: C. 3
Rationale: 750 mg ÷ 250 mg/tablet = 3 tablets.
5. The nurse needs to administer 500 mg of a medication. Available concentration: 250
mg/5 mL. How many mL should be administered?
A. 5 mL
B. 7.5 mL
C. 10 mL
D. 12 mL
Answer: C. 10 mL
Rationale: (500 mg ÷ 250 mg) × 5 mL = 10 mL.
6. A prescription reads 375 mg PO. Available: 250 mg/5 mL. How many mL should the
nurse administer?
A. 5 mL
B. 6 mL
C. 7.5 mL
D. 10 mL
Answer: C. 7.5 mL
Rationale: (375 ÷ 250) × 5 = 7.5 mL.
7. A medication is available as 100 mg/2 mL. The prescribed dose is 75 mg. How many mL
should be administered?
,A. 0.75 mL
B. 1 mL
C. 1.5 mL
D. 2 mL
Answer: C. 1.5 mL
Rationale: (75 mg ÷ 100 mg) × 2 mL = 1.5 mL.
8. The provider orders 0.5 g of a medication. How many milligrams is this?
A. 50 mg
B. 100 mg
C. 500 mg
D. 5,000 mg
Answer: C. 500 mg
Rationale: 1 g = 1,000 mg. Therefore, 0.5 g = 500 mg.
9. The provider orders 2,500 mcg. How many mg is this?
A. 0.25 mg
B. 2.5 mg
C. 25 mg
D. 250 mg
Answer: B. 2.5 mg
Rationale: 1 mg = 1,000 mcg. Therefore, 2,500 mcg ÷ 1,000 = 2.5 mg.
10. The provider orders 1.5 L of IV fluid. How many mL is this?
A. 150 mL
B. 500 mL
C. 1,000 mL
D. 1,500 mL
Answer: D. 1,500 mL
, Rationale: 1 L = 1,000 mL. Therefore, 1.5 L = 1,500 mL.
11. An IV contains 1,000 mL and is prescribed to infuse over 8 hours. What is the pump
rate?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 175 mL/hr
Answer: B. 125 mL/hr
Rationale: 1,000 mL ÷ 8 hr = 125 mL/hr.
12. An IV of 500 mL is prescribed over 4 hours. What rate should the nurse program?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 200 mL/hr
Answer: B. 125 mL/hr
Rationale: 500 mL ÷ 4 hr = 125 mL/hr.
13. An IV is running at 75 mL/hr for 6 hours. How much fluid will the patient receive?
A. 350 mL
B. 400 mL
C. 450 mL
D. 500 mL
Answer: C. 450 mL
Rationale: 75 mL/hr × 6 hr = 450 mL.
14. The nurse must infuse 1,200 mL over 10 hours. What is the infusion rate?
VERIFIED SOLUTIONS
1. The provider prescribes acetaminophen 650 mg PO. Available: acetaminophen 325
mg/tablet. How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
Answer: C. 2 tablets
Rationale: 650 mg ÷ 325 mg/tablet = 2 tablets.
2. A patient is prescribed amoxicillin 500 mg PO. Available: 250 mg capsules. How many
capsules should the nurse administer?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Answer: B. 2 capsules
Rationale: 500 mg ÷ 250 mg/capsule = 2 capsules.
3. The prescription is for ibuprofen 400 mg PO. Available: 200 mg tablets. How many
tablets are required?
A. 1
B. 1.5
C. 2
D. 3
Answer: C. 2
Rationale: 400 ÷ 200 = 2 tablets.
,4. A patient is prescribed 750 mg of a medication. The medication is available as 250 mg
tablets. How many tablets should be given?
A. 2
B. 2.5
C. 3
D. 4
Answer: C. 3
Rationale: 750 mg ÷ 250 mg/tablet = 3 tablets.
5. The nurse needs to administer 500 mg of a medication. Available concentration: 250
mg/5 mL. How many mL should be administered?
A. 5 mL
B. 7.5 mL
C. 10 mL
D. 12 mL
Answer: C. 10 mL
Rationale: (500 mg ÷ 250 mg) × 5 mL = 10 mL.
6. A prescription reads 375 mg PO. Available: 250 mg/5 mL. How many mL should the
nurse administer?
A. 5 mL
B. 6 mL
C. 7.5 mL
D. 10 mL
Answer: C. 7.5 mL
Rationale: (375 ÷ 250) × 5 = 7.5 mL.
7. A medication is available as 100 mg/2 mL. The prescribed dose is 75 mg. How many mL
should be administered?
,A. 0.75 mL
B. 1 mL
C. 1.5 mL
D. 2 mL
Answer: C. 1.5 mL
Rationale: (75 mg ÷ 100 mg) × 2 mL = 1.5 mL.
8. The provider orders 0.5 g of a medication. How many milligrams is this?
A. 50 mg
B. 100 mg
C. 500 mg
D. 5,000 mg
Answer: C. 500 mg
Rationale: 1 g = 1,000 mg. Therefore, 0.5 g = 500 mg.
9. The provider orders 2,500 mcg. How many mg is this?
A. 0.25 mg
B. 2.5 mg
C. 25 mg
D. 250 mg
Answer: B. 2.5 mg
Rationale: 1 mg = 1,000 mcg. Therefore, 2,500 mcg ÷ 1,000 = 2.5 mg.
10. The provider orders 1.5 L of IV fluid. How many mL is this?
A. 150 mL
B. 500 mL
C. 1,000 mL
D. 1,500 mL
Answer: D. 1,500 mL
, Rationale: 1 L = 1,000 mL. Therefore, 1.5 L = 1,500 mL.
11. An IV contains 1,000 mL and is prescribed to infuse over 8 hours. What is the pump
rate?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 175 mL/hr
Answer: B. 125 mL/hr
Rationale: 1,000 mL ÷ 8 hr = 125 mL/hr.
12. An IV of 500 mL is prescribed over 4 hours. What rate should the nurse program?
A. 100 mL/hr
B. 125 mL/hr
C. 150 mL/hr
D. 200 mL/hr
Answer: B. 125 mL/hr
Rationale: 500 mL ÷ 4 hr = 125 mL/hr.
13. An IV is running at 75 mL/hr for 6 hours. How much fluid will the patient receive?
A. 350 mL
B. 400 mL
C. 450 mL
D. 500 mL
Answer: C. 450 mL
Rationale: 75 mL/hr × 6 hr = 450 mL.
14. The nurse must infuse 1,200 mL over 10 hours. What is the infusion rate?
