A patient has an order for Zithromax 1g PO stat. The Zithromax bottle concentration is 200 mg per 5 mL. How many mL will you give? Round to the nearest whole number.

Convert the ordered dose from grams (g) to milligrams (mg). Ordered dose: 1 g Conversion factor: 1 g = 1000 mg Ordered dose (mg) = 1 g × 1000 mg/g = 1000 mg. Available concentration = 200 mg per 5 mL. Calculate the volume to administer in milliliters (mL). Volume (mL) = Desired Dose (mg) / Concentration (mg/mL) Find the concentration in mg/mL: 200 mg/5 mL = 40 mg/mL. Volume (mL) = 1000 mg/(40 mg/mL) = 25 mL.