Examples · Oral dose — tablets
Worked example
Oral dose — tablets — practice problem 5
The prescriber orders 750 mg of lisinopril PO. The pharmacy stocks lisinopril in 500 mg tablets.
Ordered dose750 mg
On hand500 mg per tablet
How many tablets should the nurse give?
Answer: 1.5 tablets
Step-by-step solution
1. Identify what you have and what you want
Have: 500 mg per tablet · Want: 750 mg
2. Set up dimensional analysis so mg cancels
750 mg × ( 1 tablet ÷ 500 mg )
3. Cancel mg and solve
= ( 750 × 1 ) ÷ 500 tablet
= 1.5 tablets
More oral dose — tablets examples