Examples · Oral dose - liquid
Worked example
Oral dose - liquid - practice problem 3
The prescriber orders 1000 mg of acetaminophen oral suspension. The bottle is labeled 500 mg per 15 mL.
Ordered dose1000 mg
Concentration500 mg per 15 mL
How many milliliters should the nurse give?
Answer: 30 mL
Step-by-step solution
1. Identify what you have and what you want
Have: 500 mg per 15 mL · Want: 1000 mg
2. Set up dimensional analysis so mg cancels
1000 mg × ( 15 mL ÷ 500 mg )
3. Cancel mg and solve
= ( 1000 × 15 ) ÷ 500 mL
= 30 mL
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