NMC CBT NMC-CBT Drug Calculations and Numeracy 2

Question 1

A patient requires 750 micrograms of digoxin. Tablets available are 250 micrograms each. How many tablets should be administered?

Accepted Answer

3 tablets

Answer

2 tablets

Answer

4 tablets

Answer

1.5 tablets

Question 2

An IV infusion of 500 mL must run over 4 hours using a standard giving set (20 drops/mL). What is the drip rate in drops per minute?

Accepted Answer

42 drops/min

Answer

25 drops/min

Answer

50 drops/min

Answer

35 drops/min

Question 3

A child weighing 20 kg requires amoxicillin at 25 mg/kg/day in 3 divided doses. What is the dose per administration?

Accepted Answer

167 mg

Answer

100 mg

Answer

125 mg

Answer

150 mg

Question 4

Heparin 25,000 units is added to 250 mL of 0.9% saline. The infusion runs at 20 mL/hour. How many units per hour does the patient receive?

Accepted Answer

2,000 units/hr

Answer

1,000 units/hr

Answer

500 units/hr

Answer

1,500 units/hr

Question 5

A patient is prescribed morphine 15 mg orally. The syrup available is 10 mg/5 mL. How many mL should be given?

Accepted Answer

7.5 mL

Answer

5 mL

Answer

10 mL

Answer

12.5 mL

Question 6

A nurse needs to prepare a 1:1000 adrenaline solution. What concentration does this represent in mg/mL?

Accepted Answer

1 mg/mL

Answer

0.01 mg/mL

Answer

0.1 mg/mL

Answer

10 mg/mL

Question 7

A patient's urine output over 8 hours was 360 mL. What is the hourly urine output?

Accepted Answer

45 mL/hr

Answer

30 mL/hr

Answer

40 mL/hr

Answer

50 mL/hr