Final answer:
A nurse should administer 4 tablets of the 17.75-milligram drug to meet the prescribed dose of 71 milligrams.
Step-by-step explanation:
To determine how many 17.75-milligram tablets a nurse should administer to provide a dose of 71 milligrams of a drug, we divide the total dosage required by the dosage of one tablet:
Total dosage required = 71 mg
Dosage per tablet = 17.75 mg
Number of tablets = Total dosage required ÷ Dosage per tablet
Number of tablets = 71 mg ÷ 17.75 mg
Number of tablets = 4
This calculation shows that exactly 4 tablets are needed to fulfill the prescription of 71 milligrams when each tablet contains 17.75 milligrams of the drug.