Pharmaceutical Calculations 2022 QUESTIONS AND ANSWERS| 100% CORRECT
How much meperidine would be given to a patient if the dose on hand was 50 mg/mL and the
patient was to receive 75 mg? Correct Answer: 1.5 mL
which size stock bottle should you choose to fill the prescription? Take 2 tsp qid x 7d. Correct
Answer: 300 mL
A mother has two children with poison ivy. One child takes 1 tsp tid and the other takes 2 tsp tid.
How many 120 mL bottles of diphenydramine elixir will be needed to supply both children for 4
days? Correct Answer: 2 bottles
you are instructed to heat the mixture to 130° C. You have only a Fahrenheit thermometer. What
is the equivalent temperature on the Fahrenheit scale? Correct Answer: 266° F
How many milliliters of solution are needed to provide 40 mg of famotidine when the vial in
stock has a dose of 20 mg/2 mL? Correct Answer: 4 mL
How many milligrams of pure drug are in 1.5 mL of a 1:1000 solution of epinephrine? Correct
Answer: 1.5 mg
Bicillin CR is given as an intramuscular injection preparation. It comes as 600000 units/mL and
the dose is 1.5 million units. What is the volume to be administered? Correct Answer: 2.5 mL
A patient is to use a sugar- and alcohol-free solution of potassium that contains 40 mEq/15 mL.
He is to take 30 mEq daily in two equally divided doses. How many milliliters will each dose
be? Correct Answer: 5.6 mL
A 20 g vial must have 90 mL of diluent added. It has a powder volume of 10 mL. How many
milligrams will be in each milliliter of the final solution? Correct Answer: 200 mg
At what rate would an IV pump be best set to deliver the following prescribed dosage? Drug:
piperacillin 2 g/100 mL; Patient weight: 60 lb; Dosage: 0.0042 mcg/kg/min Correct Answer: 35
mL/hr
Aggrastat at 12.5 mg in 250 mL is prescribed to be infused at a rate of 6 mcg/kg/hr in a patient
who weighs 220 lb. At what flow rate will you set the pump? Correct Answer: 12 mL/hr
If 200 mL of a 3% solution is diluted to 1200 mL the strength of the resulting solution will be:
Correct Answer: 0.5%
If 400 mL of a 6% solution is diluted to 1600 mL the strength of the resulting solution will be
Correct Answer: 1.5%
, A physician has ordered 100 mg of amoxicillin to be given tid x 10d. Amoxicillin is available in
150 mL bottle with a dose strength 125 mg/5 mL. How many milliliters will the child need at
each dose? Correct Answer: 4 mL
You have 560 mL of a solution that contains 1600 mg. How many micrograms are in 4 mL of
solution? Correct Answer: 11,430 mcg
Methotrexate is to be given at 3.3 mg/m2. The patient has a BSA of 0.83 m2. The drug is
available at the dosage of 2 mg/1 mL. How many milliliters will be dispensed for one dose?
Correct Answer: 1.4 mL
A 6-year-old child weighs 57 lb (25.9 kg) and is to take acyclovir which has a normal adult dose
of 600 mg. What is the appropriate pediatric dose for this patient? Correct Answer: 228 mg
How many 3 tsp doses are in 1 pt? Correct Answer: 32
What size of an antibiotic suspension bottle will a patient need in order to take 1 tsp twice daily
for 14 days? Correct Answer: 150 mL
Ondansetron is available in a 4 mg/2 mL vials. How many milligrams are contained in 1.5 mL?
Correct Answer: 3 mg
How many milliliters of a 1:5000 solution are needed to provide a 50 mg dose? Correct Answer:
250 mL
Calculate the amount of drug in milligrams for ipratropium bromide 0.03%- 30 mL. Correct
Answer: 9 mg
How many grams of dextrose are in 385 mL of D5W? Correct Answer: 19.25 g
If an IV is running at 125 mL/hour and two 1 liter bags are sent to the floor how long will these
bags last? Correct Answer: 16 hours
A patient has an IV of lidocaine 4 mg/mL and the prescribed dose for the patient is 6 mg/hr. How
many milliliters will the patient receive each hour? Correct Answer: 1.5 mL
A patient is to receive 120 mL/hr of a drug. If a 10 drop set is used what will the drops per
minute rate be? Correct Answer: 20 gtt/min
A physician orders an IVPB of 2 g of cefoperazone to be infused once daily. It is available as 2
g/50 mL. The order indicates the drug should be infused using a 15 drop set over 30 minutes.
What is the infusion rate? Correct Answer: 25 gtt/min
An IV of 0.45% sodium chloride 1000 mL needs to be infused. The pharmacy carries only 0.9%
sodium chloride 1000 mL. How much diluent will you need to complete this order? Correct
Answer: 500 mL
How much meperidine would be given to a patient if the dose on hand was 50 mg/mL and the
patient was to receive 75 mg? Correct Answer: 1.5 mL
which size stock bottle should you choose to fill the prescription? Take 2 tsp qid x 7d. Correct
Answer: 300 mL
A mother has two children with poison ivy. One child takes 1 tsp tid and the other takes 2 tsp tid.
How many 120 mL bottles of diphenydramine elixir will be needed to supply both children for 4
days? Correct Answer: 2 bottles
you are instructed to heat the mixture to 130° C. You have only a Fahrenheit thermometer. What
is the equivalent temperature on the Fahrenheit scale? Correct Answer: 266° F
How many milliliters of solution are needed to provide 40 mg of famotidine when the vial in
stock has a dose of 20 mg/2 mL? Correct Answer: 4 mL
How many milligrams of pure drug are in 1.5 mL of a 1:1000 solution of epinephrine? Correct
Answer: 1.5 mg
Bicillin CR is given as an intramuscular injection preparation. It comes as 600000 units/mL and
the dose is 1.5 million units. What is the volume to be administered? Correct Answer: 2.5 mL
A patient is to use a sugar- and alcohol-free solution of potassium that contains 40 mEq/15 mL.
He is to take 30 mEq daily in two equally divided doses. How many milliliters will each dose
be? Correct Answer: 5.6 mL
A 20 g vial must have 90 mL of diluent added. It has a powder volume of 10 mL. How many
milligrams will be in each milliliter of the final solution? Correct Answer: 200 mg
At what rate would an IV pump be best set to deliver the following prescribed dosage? Drug:
piperacillin 2 g/100 mL; Patient weight: 60 lb; Dosage: 0.0042 mcg/kg/min Correct Answer: 35
mL/hr
Aggrastat at 12.5 mg in 250 mL is prescribed to be infused at a rate of 6 mcg/kg/hr in a patient
who weighs 220 lb. At what flow rate will you set the pump? Correct Answer: 12 mL/hr
If 200 mL of a 3% solution is diluted to 1200 mL the strength of the resulting solution will be:
Correct Answer: 0.5%
If 400 mL of a 6% solution is diluted to 1600 mL the strength of the resulting solution will be
Correct Answer: 1.5%
, A physician has ordered 100 mg of amoxicillin to be given tid x 10d. Amoxicillin is available in
150 mL bottle with a dose strength 125 mg/5 mL. How many milliliters will the child need at
each dose? Correct Answer: 4 mL
You have 560 mL of a solution that contains 1600 mg. How many micrograms are in 4 mL of
solution? Correct Answer: 11,430 mcg
Methotrexate is to be given at 3.3 mg/m2. The patient has a BSA of 0.83 m2. The drug is
available at the dosage of 2 mg/1 mL. How many milliliters will be dispensed for one dose?
Correct Answer: 1.4 mL
A 6-year-old child weighs 57 lb (25.9 kg) and is to take acyclovir which has a normal adult dose
of 600 mg. What is the appropriate pediatric dose for this patient? Correct Answer: 228 mg
How many 3 tsp doses are in 1 pt? Correct Answer: 32
What size of an antibiotic suspension bottle will a patient need in order to take 1 tsp twice daily
for 14 days? Correct Answer: 150 mL
Ondansetron is available in a 4 mg/2 mL vials. How many milligrams are contained in 1.5 mL?
Correct Answer: 3 mg
How many milliliters of a 1:5000 solution are needed to provide a 50 mg dose? Correct Answer:
250 mL
Calculate the amount of drug in milligrams for ipratropium bromide 0.03%- 30 mL. Correct
Answer: 9 mg
How many grams of dextrose are in 385 mL of D5W? Correct Answer: 19.25 g
If an IV is running at 125 mL/hour and two 1 liter bags are sent to the floor how long will these
bags last? Correct Answer: 16 hours
A patient has an IV of lidocaine 4 mg/mL and the prescribed dose for the patient is 6 mg/hr. How
many milliliters will the patient receive each hour? Correct Answer: 1.5 mL
A patient is to receive 120 mL/hr of a drug. If a 10 drop set is used what will the drops per
minute rate be? Correct Answer: 20 gtt/min
A physician orders an IVPB of 2 g of cefoperazone to be infused once daily. It is available as 2
g/50 mL. The order indicates the drug should be infused using a 15 drop set over 30 minutes.
What is the infusion rate? Correct Answer: 25 gtt/min
An IV of 0.45% sodium chloride 1000 mL needs to be infused. The pharmacy carries only 0.9%
sodium chloride 1000 mL. How much diluent will you need to complete this order? Correct
Answer: 500 mL
