To calculate the number of 10-mg tablets of the prefabricated drug product that should be dispensed for a patient weighing 110 lb, we need to follow these steps:
Convert 110 lb to kg:
1 lb = 0.453592 kg
110 lb = 110 x 0.453592 = 49.89548 kg (rounded to 2 decimal places)
Calculate the daily dose:
The patient is to take 0.4 mg/kg of body weight.
Therefore, for a 49.9 kg patient, the daily dose would be:
0.4 mg/kg x 49.9 kg = 19.96 mg
Rounded to two decimal places, the daily dose would be 19.96 mg.
Calculate the total dose for the 10-day period:
The patient is to take the medication three times a day for 10 days.
There are 3 doses/day x 10 days = 30 doses in total.
Therefore, the total dose for the 10-day period would be:
19.96 mg/dose x 30 doses = 598.8 mg
Rounded to one decimal place, the total dose would be 598.8 mg.
Calculate the number of 10-mg tablets needed:
Since each tablet contains 10 mg of the drug, we can divide the total dose by the amount of drug in each tablet to get the number of tablets needed:
598.8 mg ÷ 10 mg/tablet = 59.88 tablets
Rounded up to the nearest whole number, we would need to dispense 60 tablets.
Therefore, 60 tablets of the prefabricated drug product should be dispensed for this patient.