A client requires 0.8 g erythromycin PO daily. The pills available are labeled erythromycin 400 mg/tablet. How many tablets should the nurse administer?

Identify the ordered dose and tablet strength Ordered Dose: 0.8 g (800 mg) Tablet Strength: 400 mg per tablet Calculate the number of tablets to administer Number of Tablets = Ordered Dose ÷ Tablet Strength Number of Tablets = 800 ÷ 400 = 2