Examples · Oral dose - liquid
Worked example
Oral dose - liquid - practice problem 10
The prescriber orders 10 mg of prednisolone oral solution. The bottle is labeled 15 mg per 5 mL.
Ordered dose10 mg
Concentration15 mg per 5 mL
How many milliliters should the nurse give?
Answer: 3.3 mL
Step-by-step solution
1. Identify what you have and what you want
Have: 15 mg per 5 mL · Want: 10 mg
2. Set up dimensional analysis so mg cancels
10 mg × ( 5 mL ÷ 15 mg )
3. Cancel mg and solve
= ( 10 × 5 ) ÷ 15 mL
= 3.3 mL
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