CAOP - Competency Assessment of Overseas Pharmacist Pharmaceutical Calculations Questions and Answers

Question 1

A 4-year-old child weighing 16 kg is prescribed paracetamol for fever at a dose of 15 mg/kg.
The paracetamol suspension available is 100 mg/5 mL.
What volume of the suspension, in mL, should be administered for a single dose?

Accepted Answer

12 mL

Answer

15 mL

Answer

10 mL

Answer

7.5 mL

Question 2

A patient is to receive 1 litre of 0.9% Sodium Chloride intravenously over a period of 10 hours. What is the required infusion rate in mL/hour?

Accepted Answer

100 mL/hour

Answer

125 mL/hour

Answer

80 mL/hour

Answer

150 mL/hour

Question 3

A pharmacist needs to prepare 300 mL of a 2% w/v hydrocortisone solution using a 10% w/v stock solution. How many millilitres of the 10% stock solution are required?

Accepted Answer

60 mL

Answer

30 mL

Answer

150 mL

Answer

15 mL

Question 4

A pharmacist needs to create a 2.5% w/w salicylic acid ointment. They only have 5% w/w and 1% w/w salicylic acid ointments in stock. To make 100 g of the 2.5% ointment, how much of the 5% ointment is needed?

Accepted Answer

37.5 g

Answer

62.5 g

Answer

50.0 g

Answer

25.0 g

Question 5

A vial contains 1 g of amoxicillin powder with a displacement value of 0.8 mL/g. To prepare a solution with a final concentration of 200 mg/mL, how much Water for Injections (diluent) must be added?

Accepted Answer

4.2 mL

Answer

5.0 mL

Answer

5.8 mL

Answer

8.0 mL

Question 6

How many millimoles (mmol) of sodium are present in a 250 mL intravenous bag of 0.9% w/v Sodium Chloride (NaCl)? (Molar mass of Na = 23 g/mol, Cl = 35.5 g/mol)

Accepted Answer

38.5 mmol

Answer

77.0 mmol

Answer

154.0 mmol

Answer

22.5 mmol

A 4-year-old child weighing 16 kg is prescribed paracetamol for fever at a dose of 15 mg/kg.The paracetamol suspension available is 100 mg/5 mL.What volume of the suspension, in mL, should be administered for a single dose?

A 4-year-old child weighing 16 kg is prescribed paracetamol for fever at a dose of 15 mg/kg.
The paracetamol suspension available is 100 mg/5 mL.
What volume of the suspension, in mL, should be administered for a single dose?