Drug Calculation Questions – Part 3
- What is the volume that has been drawn up into the syringe? Please use the correct unit and write your answer in one decimal place.
- What is the volume that has been dispensed? Please use the correct unit.
- A patient has been prescribed 2 L of 0.9% sodium chloride. What is the volume in mL?
- A patient has been prescribed 0.6 g of ibuprofen. What is the dose in mg?
- A patient has been prescribed 300 mg of phenytoin. How many tablets should be administered?
- A patient has been prescribed 1 g of carbocisteine solution. What volume should be administered? Please use the correct unit.
- A patient has been prescribed 100 mg of phenytoin suspension. What volume should be administered? Please use the correct unit.
- A patient has been prescribed levetiracetam suspension at a dose of 10 mg/kg. The patient weighs 70 kg. What volume should be administered? Please use the correct unit.
9. A patient has been prescribed 60 mg of flupentixol decanoate. What volume should be drawn up for the injection? Please use the correct unit.
10. A patient has been prescribed 4 mg of diamorphine hydrochloride. What volume should be drawn up for the injection? Please use the correct unit and write your answer to one decimal place.
11. A patient has been prescribed pethidine hydrochloride at a dose of 0.5 mg/kg. Your patient weighs 90 kg. What volume should be drawn up for the injection? Please use the correct unit and write your answer to one decimal place.
12. 
At what rate would you set the infusion pump to run?
13. 
At what rate would you set the infusion pump to run? Give your answer to the nearest whole number.
14. 
At what rate would you set the infusion pump to run?
15. Complete the following fluid balance chart to calculate if the patient has gained or lost fluid over a 24-hour period.
If the patient has gained fluid you should include ‘+’ before your balance answer, e.g. +100 mL. If the patient has lost fluid you should include ‘-’ before your balance answer, e.g. -100 mL. Please use the correct unit.
Answers
1. 6.5 ml
2. 20 ml
3. 2000
4. 600
5. 3
6. 25 mL
7. 2 mL
8. 7 mL
9. 3 mL
10 0.8mL
11. 0.9 mL
12. 80
13. 167
14. 160
15.
Total input: 1250 mL
Total output: 910 mL
Balance: +340 mL