Pharmaceutical Calculations Exam
Questions With 100% Pass
Mr. Jones takes 2 g of paracetamol on day 1, 0.0015 kg on day 2 and 500 mg on day 3.
How much paracetamol did Mr. Jones take, in total, over these 3 days? Give your
answer in grams. - Answer-4g
/.Mrs. Taylor is prescribed dopamine and amoxycillin by intravenous infusion. To
prepare this infusion, you add 300 microlitres of dopamine solution and 15 mL of
amoxycillin solution to 0.5 L of 0.9% w/v sodium chloride intravenous (IV) solution.
What is the total volume of mixed IV solution? Give your answer in millilitres. - Answer-
515.3mL
/.Miss Avon is prescribed dipyridamole for the prevention of stroke. The prescribed dose
is 2 tablets of dipyridamole, each containing 100 mg, to be taken 3 times a day.
What is the total quantity of dipyridamole taken by the patient in 7 days? Give your
answer in grams - Answer-4.2g
/.A cruise ship breaks down in the Bermuda Triangle with 25 passengers and 15
crewmembers stranded on board. The ship's doctor is worried about scurvy breaking
out and prescribes 100 mg of vitamin C for each person per day. In total, they are
marooned for a 365 days.
How many kilograms of vitamin C are needed for the entire 365 days? - Answer-1.46kg
/.'Ibugel' contains 50 mg of ibuprofen per gram of gel. Each tube contains 100 g of gel.
How many kilograms of ibuprofen are needed to manufacture 2000 tubes of gel? -
Answer-10kg
/.A salbutamol inhaler delivers 100 micrograms in each 'puff' and each inhaler contains
200 doses.
How many grams of drug are contained in the device? - Answer-0.02g
/.Mr. Khan takes diazepam for anxiety. Each tablet contains 2 mg of the diazepam. Mr.
Khan takes 2 tablets, 3 times a day.
How many millimoles of diazepam does he take each day (RMM diazepam = 285)?
Give your answer to 1 significant figure. - Answer-0.04mmol
/.Convert 2.5 L to cm3. - Answer-2500cm3
/.Mr. Porter is prescribed Testogel sachets. Each sachet contains 5 g of gel with 0.06 g
of a testosterone-based compound in it. The RMM of this compound is 300.
, How many millimoles of the testosterone-based compound does each 5 g sachet of gel
contain? - Answer-0.2mmol
/.Miss Nicholson, age 5, weighs 25 kg. She undergoes surgery during which she needs
an intravenous injection of fentanyl at a dose of 3 micrograms/kg. The fentanyl injection
contains 50 micrograms/mL.
What volume, in mL, of the fentanyl injection should she be given? - Answer-1.5mL
/.You are an industrial pharmacist involved in the manufacturing of tablets of a new anti-
ulcer drug. Each tablet contains 200 mg of the drug. The drug itself is unstable and so
tablets are manufactured using a "salt form" of the drug. The MWt of the drug is 400
and the MWt of the salt form is 600.
How many kilograms of the salt form do you need to make 1 million tablets?
Dopamine, MWt = 153 Dopamine Hydrochloride, MWt = 190 - Answer-300kg
/.Mr. Harris gargles with 10 mL of 0.2 % w/v chlorhexidine gluconate mouthwash twice a
day, for the management of mouth ulcers.
How many grams of chlorhexidine gluconate does Mr. Harris use each day? - Answer-
0.04g
/.Miss Sully is 6 years old and weighs 20.1 kg. She is prescribed 2 mg/5 mL diazepam
oral solution for muscle spasm at a dose of 5 mg twice a day.
What is the concentration of diazepam oral solution expressed as a ratio concentration?
- Answer-1:2500
/.Mr. Williams is prescribed Oramorph oral solution with instructions to take 2.5 mL
every 4 hours. The concentration of morphine sulfate in Oramorph solution is 10 mg/ 5
mL.
What is the millimolar concentration of morphine sulfate in Oramorph oral solution? For
the purpose of this question, you can take the RMM of morphine sulfate to be 400. -
Answer-5mM
/.Mrs. Ali takes two soluble 500 mg tablets of paracetamol dissolved in 250 mL of water,
four times a day for a headache.
What is the concentration, expressed in % w/v, of paracetamol in the resultant solution?
- Answer-0.4w/v
/.Mr. Coach keeps normal saline sachets in the first aid kit of the rugby under 10s team
for cleaning grazes. What is the concentration in mmol/L of a 0.9% w/v sodium chloride
solution? For the purpose of this question, you can take the RMM of Sodium chloride to
be 60. - Answer-150mmol/L
/.It is winter flu season and you are preparing for the start of the flu vaccination service
in your pharmacy. Your standard operating procedure require you to have two
adrenaline auto-injectors available in case of the rare event that a patient experiences
anaphylactic shock.
Questions With 100% Pass
Mr. Jones takes 2 g of paracetamol on day 1, 0.0015 kg on day 2 and 500 mg on day 3.
How much paracetamol did Mr. Jones take, in total, over these 3 days? Give your
answer in grams. - Answer-4g
/.Mrs. Taylor is prescribed dopamine and amoxycillin by intravenous infusion. To
prepare this infusion, you add 300 microlitres of dopamine solution and 15 mL of
amoxycillin solution to 0.5 L of 0.9% w/v sodium chloride intravenous (IV) solution.
What is the total volume of mixed IV solution? Give your answer in millilitres. - Answer-
515.3mL
/.Miss Avon is prescribed dipyridamole for the prevention of stroke. The prescribed dose
is 2 tablets of dipyridamole, each containing 100 mg, to be taken 3 times a day.
What is the total quantity of dipyridamole taken by the patient in 7 days? Give your
answer in grams - Answer-4.2g
/.A cruise ship breaks down in the Bermuda Triangle with 25 passengers and 15
crewmembers stranded on board. The ship's doctor is worried about scurvy breaking
out and prescribes 100 mg of vitamin C for each person per day. In total, they are
marooned for a 365 days.
How many kilograms of vitamin C are needed for the entire 365 days? - Answer-1.46kg
/.'Ibugel' contains 50 mg of ibuprofen per gram of gel. Each tube contains 100 g of gel.
How many kilograms of ibuprofen are needed to manufacture 2000 tubes of gel? -
Answer-10kg
/.A salbutamol inhaler delivers 100 micrograms in each 'puff' and each inhaler contains
200 doses.
How many grams of drug are contained in the device? - Answer-0.02g
/.Mr. Khan takes diazepam for anxiety. Each tablet contains 2 mg of the diazepam. Mr.
Khan takes 2 tablets, 3 times a day.
How many millimoles of diazepam does he take each day (RMM diazepam = 285)?
Give your answer to 1 significant figure. - Answer-0.04mmol
/.Convert 2.5 L to cm3. - Answer-2500cm3
/.Mr. Porter is prescribed Testogel sachets. Each sachet contains 5 g of gel with 0.06 g
of a testosterone-based compound in it. The RMM of this compound is 300.
, How many millimoles of the testosterone-based compound does each 5 g sachet of gel
contain? - Answer-0.2mmol
/.Miss Nicholson, age 5, weighs 25 kg. She undergoes surgery during which she needs
an intravenous injection of fentanyl at a dose of 3 micrograms/kg. The fentanyl injection
contains 50 micrograms/mL.
What volume, in mL, of the fentanyl injection should she be given? - Answer-1.5mL
/.You are an industrial pharmacist involved in the manufacturing of tablets of a new anti-
ulcer drug. Each tablet contains 200 mg of the drug. The drug itself is unstable and so
tablets are manufactured using a "salt form" of the drug. The MWt of the drug is 400
and the MWt of the salt form is 600.
How many kilograms of the salt form do you need to make 1 million tablets?
Dopamine, MWt = 153 Dopamine Hydrochloride, MWt = 190 - Answer-300kg
/.Mr. Harris gargles with 10 mL of 0.2 % w/v chlorhexidine gluconate mouthwash twice a
day, for the management of mouth ulcers.
How many grams of chlorhexidine gluconate does Mr. Harris use each day? - Answer-
0.04g
/.Miss Sully is 6 years old and weighs 20.1 kg. She is prescribed 2 mg/5 mL diazepam
oral solution for muscle spasm at a dose of 5 mg twice a day.
What is the concentration of diazepam oral solution expressed as a ratio concentration?
- Answer-1:2500
/.Mr. Williams is prescribed Oramorph oral solution with instructions to take 2.5 mL
every 4 hours. The concentration of morphine sulfate in Oramorph solution is 10 mg/ 5
mL.
What is the millimolar concentration of morphine sulfate in Oramorph oral solution? For
the purpose of this question, you can take the RMM of morphine sulfate to be 400. -
Answer-5mM
/.Mrs. Ali takes two soluble 500 mg tablets of paracetamol dissolved in 250 mL of water,
four times a day for a headache.
What is the concentration, expressed in % w/v, of paracetamol in the resultant solution?
- Answer-0.4w/v
/.Mr. Coach keeps normal saline sachets in the first aid kit of the rugby under 10s team
for cleaning grazes. What is the concentration in mmol/L of a 0.9% w/v sodium chloride
solution? For the purpose of this question, you can take the RMM of Sodium chloride to
be 60. - Answer-150mmol/L
/.It is winter flu season and you are preparing for the start of the flu vaccination service
in your pharmacy. Your standard operating procedure require you to have two
adrenaline auto-injectors available in case of the rare event that a patient experiences
anaphylactic shock.
