Question

The order is for 400mcg of thyroxin. The label reads 0.2 mg tablets. How many tablets would you give?

a. 0.5 tablet
b. 1 tablet
c. 2 tablets

Answer 1

The correct number of tablets to give is (c) 2 tablets.

Step-by-step explanation:

The student's question involves the conversion of units of medication dosage from micrograms (mcg) to milligrams (mg). The order is for 400mcg of thyroxine, and the available medication comes in 0.2 mg tablets. To determine the number of tablets to administer, we need to convert the prescribed dosage to the same unit as the medication available.

First, we know that 1 mg is equal to 1000 mcg. Therefore, to convert 0.2 mg to mcg, we multiply 0.2 mg by the conversion factor of 1000 mcg/mg:

0.2 mg * 1000 mcg/mg = 200 mcg

Next, we divide the prescribed dosage of 400 mcg by the dosage per tablet, which is 200 mcg:

400 mcg / 200 mcg/tablet = 2 tablets

Therefore, the correct number of tablets to give is 2 tablets.