PSI Pharmaceutical Calculations

Question 1

A patient requires amoxicillin 250 mg. The available suspension contains 125 mg/5 mL. What volume should be dispensed per dose?

Accepted Answer

10 mL

Answer

5 mL

Answer

15 mL

Answer

20 mL

Question 2

A prescription states 'paracetamol 0.5 g'. Tablets available are 500 mg. How many tablets should be dispensed per dose?

Accepted Answer

1 tablet

Answer

0.5 tablet

Answer

2 tablets

Answer

5 tablets

Question 3

A 2% w/v solution contains how many grams of solute in 250 mL?

Accepted Answer

5 g

Answer

0.5 g

Answer

2 g

Answer

8 g

Question 4

A morphine injection contains 10 mg/mL. A patient requires a 15 mg dose. What volume should be drawn up?

Accepted Answer

1.5 mL

Answer

0.5 mL

Answer

1.0 mL

Answer

2.0 mL

Question 5

Digoxin tablets are available as 62.5 micrograms. A patient requires 125 micrograms per dose. How many tablets should be given?

Accepted Answer

2 tablets

Answer

1 tablet

Answer

3 tablets

Answer

4 tablets

Question 6

How many millilitres of a 1 in 1000 adrenaline solution are required to obtain a dose of 0.5 mg?

Accepted Answer

0.5 mL

Answer

1.0 mL

Answer

2.0 mL

Answer

5.0 mL

Question 7

A patient weighing 70 kg is prescribed a drug at a dose of 5 mg/kg. What is the total dose required?

Accepted Answer

350 mg

Answer

70 mg

Answer

175 mg

Answer

500 mg