NMC CBT Drug Calculations and Numeracy 2

Question 1

A patient is prescribed 1.2 g of amoxicillin orally. The pharmacy supplies 500 mg capsules. How many capsules should be administered?

Accepted Answer

2.4 capsules — query the prescription

Answer

2 capsules

Answer

3 capsules

Answer

1.2 capsules

Question 2

An IV infusion of 1 litre of 0.9% NaCl is prescribed over 8 hours. The giving set delivers 20 drops per mL. What is the drip rate?

Accepted Answer

42 drops/min

Answer

25 drops/min

Answer

33 drops/min

Answer

50 drops/min

Question 3

A child weighing 22 kg is prescribed paracetamol at 15 mg/kg. The oral suspension contains 250 mg in 5 mL. What volume should be administered?

Accepted Answer

6.6 mL

Answer

5.6 mL

Answer

6.0 mL

Answer

7.2 mL

Question 4

A 70 kg patient requires dopamine at 5 mcg/kg/min. The bag contains 400 mg in 250 mL. What is the infusion rate in mL/hr?

Accepted Answer

13.1 mL/hr

Answer

10.2 mL/hr

Answer

15.5 mL/hr

Answer

18.0 mL/hr

Question 5

A prescription states: 'morphine 10 mg in 10 mL 0.9% NaCl IV, give 3 mg.' How many mL should be drawn up?

Accepted Answer

3 mL

Answer

1 mL

Answer

5 mL

Answer

0.3 mL

Question 6

A patient's fluid balance shows: IV NaCl 1000 mL, oral 350 mL, IV antibiotics 100 mL x 3 doses. Output: urine 1100 mL, vomit 200 mL. What is the fluid balance?

Accepted Answer

+350 mL

Answer

+250 mL

Answer

+450 mL

Answer

+150 mL