A nurse is preparing to administer prednisone 0.04 g PO. Available is prednisone 20 mg tablets. How many tablets should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Calculation: Convert the desired dose from grams (g) to milligrams (mg). 1 g = 1000 mg. Desired dose in mg = 0.04 g × 1000 mg/g = 40 mg. Available tablet strength = 20 mg. Calculate the number of tablets to administer. Number of tablets = Desired dose (mg) / Tablet strength (mg/tablet) = 40 mg / 20 mg/tablet = 2 tablets.