Question

You need to administer oral ibuprofen, 150 mg, to your 5-year-old patient. Ibuprofen is available in a liquid form with 100 mg in 5 mL. SHOW YOUR WORK!

1. How many milliliters (mL) will you administer?

2. When the child is discharged, how many teaspoons will you instruct the parent to administer for each 150 mg dose?

Answer 1

Given, administered oral ibuprofen, 150 mg, to 5-year-old patient.

Hence, each dose = 150 mg ibuprofen

Ibuprofen is available in a liquid form with 100 mg in 5 ml

1. Using unitary method:-

100 mg ibuprofen present in 5 ml

1 mg ibuprofen present in = 5/100 ml

150 mg ibuprofen present in =(5/100) ×150 ml

= 7.5 ml

Therefore, 7.5 ml liquid ibuprofen should be administered.

2. Now, 1 teaspoon = 4.93 ml

Using unitary method:-

4.93 ml = 1 teaspoon

1 ml = 1/4.93 teaspoon

7.5 ml = (1/4.93) ×7.5 teaspoon

= 1.52 teaspoons

= 1.5 teaspoons [ in two significant figure]

Therefore, 1.5 teaspoons or one and half teaspoons should be nstructed the parent to administer for each 150 mg dose.