A nurse is preparing to administer fluoxetine 30 mg PO for a client who has depression and cannot swallow capsules. Available is fluoxetine 20 mg/5 mL oral solution. How many mL should the nurse plan to administer? (Round to the nearest tenth. Use a leading zero if it applies.)

To calculate the volume of fluoxetine to administer, we need to use the formula for dose conversion. Step 1 is to set up the equation: 30 mg (desired dose) ÷ (20 mg/5 mL). This simplifies to 30 mg × (5 mL/20 mg). The mg units cancel out, leaving us with the volume in mL. So, the correct answer is 7.5 mL.