Med-Math: Dosage Calculation,
Preparation and Administration (7th
edition) by Susan Buchholz eBook
Med-Math Practice Questions (1–20)
1. A patient is ordered 500 mg of medication. The available tablet is 250 mg. How many
tablets should the patient receive?
✅
a) 1
b) 2
c) 3
d) 4
Solution: 500 ÷ 250 = 2 tablets.
2. A physician orders 0.6 g of a drug. The available medication is 200 mg per tablet. How
many tablets are needed?
✅
a) 2
b) 3
c) 4
d) 5
Solution: 0.6 g = 600 mg; 600 ÷ 200 = 3 tablets.
3. An IV infusion of 1 L is to run over 8 hours. What is the flow rate in mL/hr?
✅
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 200 mL/hr
,Solution: 1000 mL ÷ 8 hr = 125 mL/hr.
4. The order is for 30 mg of a drug. You have a 10 mg/mL solution. How many mL will you
give?
✅
a) 2 mL
b) 3 mL
c) 4 mL
d) 5 mL
Solution: 30 ÷ 10 = 3 mL.
5. A patient needs 0.75 L of IV fluid over 6 hours. What is the rate in mL/hr?
✅
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 175 mL/hr
Solution: 0.75 L = 750 mL; 750 ÷ 6 = 125 mL/hr.
6. The order is for 250 mcg of medication. You have 0.5 mg tablets. How many tablets will
you give?
✅
a) 0.25
b) 0.5
c) 1
d) 2
Solution: 0.5 mg = 500 mcg; 250 ÷ 500 = 0.5 tablet.
7. A patient is prescribed 20 mg of medication. The supply is 5 mg tablets. How many
tablets should the nurse administer?
a) 2
✅
b) 3
c) 4
d) 5
Solution: 20 ÷ 5 = 4 tablets.
, 8. An order reads: Digoxin 0.125 mg daily. You have 0.25 mg tablets. How much will you
give?
✅
a) 0.125 tablet
b) 0.25 tablet
c) 0.5 tablet
d) 1 tablet
Solution: 0.125 ÷ 0.25 = 0.5 tablet.
9. The doctor orders 450 mg of medication. Tablets available are 150 mg. How many
tablets will you give?
✅
a) 2
b) 3
c) 4
d) 5
Solution: 450 ÷ 150 = 3 tablets.
10. A patient is to receive 60 mg of a drug. Supply: 20 mg/mL. How many mL do you
give?
✅
a) 2 mL
b) 3 mL
c) 4 mL
d) 5 mL
Solution: 60 ÷ 20 = 3 mL.
11. IV order: 1000 mL NS over 10 hours. Flow rate?
✅
a) 50 mL/hr
b) 100 mL/hr
c) 150 mL/hr
d) 200 mL/hr
Solution: 1000 ÷ 10 = 100 mL/hr.
12. A patient is prescribed 75 mg of medication. Available: 25 mg tablets. How many
tablets to give?
a) 2
Preparation and Administration (7th
edition) by Susan Buchholz eBook
Med-Math Practice Questions (1–20)
1. A patient is ordered 500 mg of medication. The available tablet is 250 mg. How many
tablets should the patient receive?
✅
a) 1
b) 2
c) 3
d) 4
Solution: 500 ÷ 250 = 2 tablets.
2. A physician orders 0.6 g of a drug. The available medication is 200 mg per tablet. How
many tablets are needed?
✅
a) 2
b) 3
c) 4
d) 5
Solution: 0.6 g = 600 mg; 600 ÷ 200 = 3 tablets.
3. An IV infusion of 1 L is to run over 8 hours. What is the flow rate in mL/hr?
✅
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 200 mL/hr
,Solution: 1000 mL ÷ 8 hr = 125 mL/hr.
4. The order is for 30 mg of a drug. You have a 10 mg/mL solution. How many mL will you
give?
✅
a) 2 mL
b) 3 mL
c) 4 mL
d) 5 mL
Solution: 30 ÷ 10 = 3 mL.
5. A patient needs 0.75 L of IV fluid over 6 hours. What is the rate in mL/hr?
✅
a) 100 mL/hr
b) 125 mL/hr
c) 150 mL/hr
d) 175 mL/hr
Solution: 0.75 L = 750 mL; 750 ÷ 6 = 125 mL/hr.
6. The order is for 250 mcg of medication. You have 0.5 mg tablets. How many tablets will
you give?
✅
a) 0.25
b) 0.5
c) 1
d) 2
Solution: 0.5 mg = 500 mcg; 250 ÷ 500 = 0.5 tablet.
7. A patient is prescribed 20 mg of medication. The supply is 5 mg tablets. How many
tablets should the nurse administer?
a) 2
✅
b) 3
c) 4
d) 5
Solution: 20 ÷ 5 = 4 tablets.
, 8. An order reads: Digoxin 0.125 mg daily. You have 0.25 mg tablets. How much will you
give?
✅
a) 0.125 tablet
b) 0.25 tablet
c) 0.5 tablet
d) 1 tablet
Solution: 0.125 ÷ 0.25 = 0.5 tablet.
9. The doctor orders 450 mg of medication. Tablets available are 150 mg. How many
tablets will you give?
✅
a) 2
b) 3
c) 4
d) 5
Solution: 450 ÷ 150 = 3 tablets.
10. A patient is to receive 60 mg of a drug. Supply: 20 mg/mL. How many mL do you
give?
✅
a) 2 mL
b) 3 mL
c) 4 mL
d) 5 mL
Solution: 60 ÷ 20 = 3 mL.
11. IV order: 1000 mL NS over 10 hours. Flow rate?
✅
a) 50 mL/hr
b) 100 mL/hr
c) 150 mL/hr
d) 200 mL/hr
Solution: 1000 ÷ 10 = 100 mL/hr.
12. A patient is prescribed 75 mg of medication. Available: 25 mg tablets. How many
tablets to give?
a) 2
