NAPLEX Math Exam Questions and
Answers[150 Questions]| Correctly
Solved 100% A+
1. A physician orders 250 mg of a medication. The medication is available in 500 mg tablets.
How many tablets should the patient take?
0.5 tablets
2. You have a solution containing 20% w/v of a drug. How many grams of drug are in 100 mL of
this solution?
20 grams
3. A patient is prescribed 300 mg of a medication to be taken twice a day for 7 days. How many
total grams will the patient need for the entire course of treatment?
4.2 grams
4. You need to prepare 500 mL of a 0.9% saline solution. How many grams of sodium chloride
(NaCl) do you need?
4.5 grams
5. A patient is to receive 50 mg of a drug. The drug is available in 25 mg/mL. What volume of
the solution will be needed?
1
, 2 mL
6. A medication has a half-life of 4 hours. If the initial concentration is 100 mg/L, what will be
the concentration after 12 hours?
12.5 mg/L
7. You need to dilute 10 mL of a 5% solution to make a 2% solution. How much diluent do you
need to add?
15 mL
8. A patient needs a dosage of 1.5 mg/kg of a medication. The patient weighs 70 kg. What is the
total dose?
105 mg
9. You have a 10% solution and need to make 200 mL of a 5% solution. How much of the 10%
solution do you need?
100 mL
10. A prescription calls for 250 mL of a 1:1000 solution. How many grams of the active
ingredient are needed?
0.25 grams
2
, 11. A patient is to receive 100 mL of a solution at a rate of 20 mL/hour. How long will it take to
infuse the entire volume?
5 hours
12. You need to administer a medication at a rate of 1 mg/min. If the medication comes in a 10
mg/mL solution, what volume should be given per minute?
0.1 mL
13. A vial contains 2 mL of a solution that has a concentration of 500 mg/mL. How many
milligrams of drug are in the vial?
1000 mg
14. A prescription requires 75 mg of a drug, but you only have 250 mg tablets. How many tablets
should be dispensed?
1 tablet
15. A pharmacy receives an order for 600 mL of a 1% solution. How many grams of active
ingredient are required?
6 grams
16. You need to convert 100 mg to grams. What is the result?
0.1 grams
3
Answers[150 Questions]| Correctly
Solved 100% A+
1. A physician orders 250 mg of a medication. The medication is available in 500 mg tablets.
How many tablets should the patient take?
0.5 tablets
2. You have a solution containing 20% w/v of a drug. How many grams of drug are in 100 mL of
this solution?
20 grams
3. A patient is prescribed 300 mg of a medication to be taken twice a day for 7 days. How many
total grams will the patient need for the entire course of treatment?
4.2 grams
4. You need to prepare 500 mL of a 0.9% saline solution. How many grams of sodium chloride
(NaCl) do you need?
4.5 grams
5. A patient is to receive 50 mg of a drug. The drug is available in 25 mg/mL. What volume of
the solution will be needed?
1
, 2 mL
6. A medication has a half-life of 4 hours. If the initial concentration is 100 mg/L, what will be
the concentration after 12 hours?
12.5 mg/L
7. You need to dilute 10 mL of a 5% solution to make a 2% solution. How much diluent do you
need to add?
15 mL
8. A patient needs a dosage of 1.5 mg/kg of a medication. The patient weighs 70 kg. What is the
total dose?
105 mg
9. You have a 10% solution and need to make 200 mL of a 5% solution. How much of the 10%
solution do you need?
100 mL
10. A prescription calls for 250 mL of a 1:1000 solution. How many grams of the active
ingredient are needed?
0.25 grams
2
, 11. A patient is to receive 100 mL of a solution at a rate of 20 mL/hour. How long will it take to
infuse the entire volume?
5 hours
12. You need to administer a medication at a rate of 1 mg/min. If the medication comes in a 10
mg/mL solution, what volume should be given per minute?
0.1 mL
13. A vial contains 2 mL of a solution that has a concentration of 500 mg/mL. How many
milligrams of drug are in the vial?
1000 mg
14. A prescription requires 75 mg of a drug, but you only have 250 mg tablets. How many tablets
should be dispensed?
1 tablet
15. A pharmacy receives an order for 600 mL of a 1% solution. How many grams of active
ingredient are required?
6 grams
16. You need to convert 100 mg to grams. What is the result?
0.1 grams
3
