A child with an infection receives prescription for cefixime 80 mg by mouth every 12 hours. The bottle is labeled, Cetixime for Oral Suspension, USP 100 mg 5 mL. How many mL should nurse administer? (Enter numerical value only.)

Given: Ordered dose of Cefixime: 80 mg Concentration of Cefixime suspension: 100 mg per 5 mL Step 1: Set up the proportion: Desired dose (mg) / Volume to administer (mL) = Concentration (mg/mL) Step 2: Substitute the values: 80 mg / Volume = 100 mg/5 mL Step 3: Solve for the unknown volume: Volume = 80 mg / (100 mg/5 mL) Volume = 80 mg x (5 mL / 100 mg) Volume = 4 mL