Examples · Oral dose — liquid
Worked example
Oral dose — liquid — practice problem 11
The prescriber orders 50 mg of amoxicillin oral suspension. The bottle is labeled 25 mg per 5 mL.
Ordered dose50 mg
Concentration25 mg per 5 mL
How many milliliters should the nurse give?
Answer: 10 mL
Step-by-step solution
1. Identify what you have and what you want
Have: 25 mg per 5 mL · Want: 50 mg
2. Set up dimensional analysis so mg cancels
50 mg × ( 5 mL ÷ 25 mg )
3. Cancel mg and solve
= ( 50 × 5 ) ÷ 25 mL
= 10 mL
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