If a patient is to receive 400 mcg of a medication and it is supplied in 200 mcg tablets, how many tablets are needed?

To determine the number of tablets needed for the patient to receive the prescribed dose of 400 mcg, we first assess how much medication is contained in each tablet. With the medication supplied in 200 mcg tablets, we can calculate the total number of tablets required by dividing the total required dose (400 mcg) by the amount per tablet (200 mcg).

Calculating this gives us:

400 mcg (total dose) ÷ 200 mcg (per tablet) = 2 tablets.

This shows that the patient would need 2 tablets to reach the required dosage of 400 mcg. This reasoning ensures that the patient receives the exact amount of medication needed for effective treatment without exceeding or falling short of the intended dose.