Drug Calculations

Question 1

Front

Answer 1

Back

Question 2

What is the formula for calculating dose from stock?

Answer 2

Dose = Strength × Volume

Question 3

Stock: 250 mg/5 mL. Required: 500 mg. How many mL?

Answer 3

10 mL

Question 4

Required dose: 125 mg. Stock: 250 mg/5 mL. Volume needed?

Answer 4

2.5 mL

Question 5

You have 100 mg in 2 mL. What is the concentration?

Answer 5

50 mg/mL

Question 6

Required: 0.5 mg. Stock: 250 mcg/mL. Volume needed?

Answer 6

2 mL

Question 7

Child weighs 20 kg. Dose required: 5 mg/kg. Total dose?

Answer 7

100 mg

Question 8

Dose: 1 mg/kg for a 70 kg adult. Total dose?

Answer 8

70 mg

Question 9

Infuse 1000 mL over 8 hours. mL/hour rate?

Answer 9

125 mL/hour

Question 10

Infuse 500 mL over 4 hours. What is the rate?

Answer 10

125 mL/hour

Question 11

Give 1 g in 100 mL over 30 min. mL/min rate?

Answer 11

3.33 mL/min

Question 12

250 mL over 2 hours with 20 drops/mL set. Drops/min?

Answer 12

42 drops/min

Question 13

Convert 1 in 1000 to mg/mL

Answer 13

1 mg/mL

Question 14

Convert 0.1% to mg/mL

Answer 14

1 mg/mL

Question 15

Convert 2% solution to mg/mL

Answer 15

20 mg/mL

Question 16

Convert 500 mcg to mg

Answer 16

0.5 mg

Question 17

Convert 0.75 g to mg

Answer 17

750 mg

Question 18

Convert 2 L to mL

Answer 18

2000 mL

Question 19

Convert 1000 mL to L

Answer 19

1 L