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.)

The correct answer is A: 0.5 tablets. To calculate this, we first convert the prescribed dose of 125 mcg to mg by dividing by 1000 (125 mcg = 0.125 mg). Then, we divide the total mg by the strength of each tablet (0.25 mg) to determine the number of tablets needed. In this case, 0.125 mg ├À 0.25 mg = 0.5 tablets. This is the correct dosage as it aligns with the prescribed amount of digoxin. The other choices are incorrect because they do not accurately reflect the calculated dosage based on the prescription and tablet strength.