Final answer:
To administer a 250mg dose using 100mg tablets, divide 250 mg by 100 mg/tablet to get 2.5 tablets. Round up to the nearest whole tablet, meaning you should administer 3 tablets.
Step-by-step explanation:
To calculate the amount of medication to administer, you first need to understand the dosage required and the strength of the tablets available. In this case, the ordered dosage is 250 mg, and each tablet contains 100 mg of the medication. You must divide the total prescribed dosage by the strength of each tablet: 250 mg ÷ 100 mg/tablet = 2.5 tablets.
Since you cannot administer half a tablet, you would round up to the nearest whole tablet. Therefore, you would give 3 tablets to deliver the ordered dose as healthcare professionals cannot typically administer partial tablets. This method ensures that patients receive the correct dosage, which is crucial for both efficacy and safety. It's essential to always consider the proper conversion between different units of measurement to ensure the accurate administration of medication.