A nurse is caring for a client who has heart failure and a prescription for digoxin 125 mcg PO daily. Available is digoxin PO 0.25 mg/tablet. How many tablets should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero)

Calculation: Convert the desired dose from micrograms (mcg) to milligrams (mg). Desired dose (mg) = 125 mcg / 1000 mcg/mg = 0.125 mg. Identify the available strength per tablet. = 0.25 mg/tablet. Calculate the number of tablets to administer. Number of tablets = Desired dose (mg) / Available strength (mg/tablet) = 0.125 mg / 0.25 mg/tablet = 0.5 tablets.