Question

A physician order calls for a ketoprofen oral suspension to contain $50 \mathrm{mg}$ of ketoprofen in $5 \mathrm{~mL}$ of aqueous vehicle. The pharmacist has on hand a $1.5 \%$ aqueous suspension of ketoprofen. How many $\mathrm{mL}$ of aqueous vehicle should be added to the preparation on hand in preparing the prescribed suspension?

   A physician order calls for a ketoprofen oral suspension to contain $50 \mathrm{mg}$ of ketoprofen in $5 \mathrm{~mL}$ of aqueous vehicle. The pharmacist has on hand a $1.5 \%$ aqueous suspension of ketoprofen. How many $\mathrm{mL}$ of aqueous vehicle should be added to the preparation on hand in preparing the prescribed suspension?

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Essential Math and Calculations for Pharmacy Technicians

Essential Math and Calculations for Pharmacy Technicians

Indra K. Reddy,… 1st Edition

Chapter 7, Problem 30

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Step 1

Given that the final suspension should contain 50 mg of ketoprofen in 5 mL of aqueous vehicle, the concentration of ketoprofen in the final suspension is: $$\frac{50 \text{ mg}}{5 \text{ mL}} = 10 \text{ mg/mL}$$ Show more…

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A physician order calls for a ketoprofen oral suspension to contain $50 \mathrm{mg}$ of ketoprofen in $5 \mathrm{~mL}$ of aqueous vehicle. The pharmacist has on hand a $1.5 \%$ aqueous suspension of ketoprofen. How many $\mathrm{mL}$ of aqueous vehicle should be added to the preparation on hand in preparing the prescribed suspension?

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