FREE NEX Mathematical Calculations: Dosages and Solutions Questions and Answers

Question 1

A physician orders 500 mg of a medication. The medication is available in 250 mg tablets. How many tablets should the nurse administer?

Accepted Answer

2 tablets

Answer

1 tablet

Answer

1.5 tablets

Answer

0.5 tablets

Question 2

The order is for 60 mg of a liquid medication. The pharmacy supplies the medication in a concentration of 80 mg/2 mL. How many mL should be administered?

Accepted Answer

1.5 mL

Answer

1.25 mL

Answer

2.0 mL

Answer

2.67 mL

Question 3

An IV bag contains 1000 mL of fluid to be infused over 5 hours. At what rate in mL/hr should the nurse set the infusion pump?

Accepted Answer

200 mL/hr

Answer

150 mL/hr

Answer

175 mL/hr

Answer

250 mL/hr

Question 4

A patient who weighs 70 kg is prescribed a medication at a dose of 3 mg/kg. What is the total dose in mg the patient should receive?

Accepted Answer

210 mg

Answer

73 mg

Answer

23.3 mg

Answer

140 mg

Question 5

A doctor prescribes 0.75 g of a drug. The available tablets are 250 mg each. How many tablets should be given?

Accepted Answer

3 tablets

Answer

2 tablets

Answer

2.5 tablets

Answer

4 tablets

Question 6

How many grams of dextrose are in 500 mL of a 5% Dextrose in Water (D5W) solution?

Accepted Answer

25 g

Answer

5 g

Answer

50 g

Answer

10 g