Pharmacy Dosage Calculations 2

Question 1

A physician orders 500 mg of amoxicillin. The available stock is 250 mg/5 mL. How many mL should be dispensed per dose?

Accepted Answer

10 mL

Answer

5 mL

Answer

15 mL

Answer

20 mL

Question 2

A patient needs 0.4 mg of clonidine. The available tablets are 0.2 mg each. How many tablets should be given?

Accepted Answer

2 tablets

Answer

0.5 tablet

Answer

1 tablet

Answer

4 tablets

Question 3

An IV infusion of 1,000 mL is to run over 8 hours. What is the flow rate in mL/hr?

Accepted Answer

125 mL/hr

Answer

100 mL/hr

Answer

115 mL/hr

Answer

150 mL/hr

Question 4

A prescription calls for 1.5 g of a drug. How many milligrams is this?

Accepted Answer

1,500 mg

Answer

15 mg

Answer

150 mg

Answer

15,000 mg

Question 5

A technician needs to prepare 240 mL of a 2% solution using a 10% stock solution. How many mL of stock solution are needed?

Accepted Answer

48 mL

Answer

24 mL

Answer

36 mL

Answer

60 mL

Question 6

A drop factor is 15 gtts/mL and the ordered rate is 90 mL/hr. What is the drip rate in gtts/min?

Accepted Answer

22.5 gtts/min

Answer

15 gtts/min

Answer

20 gtts/min

Answer

30 gtts/min