Final answer:
The dose of Synthroid prescribed is 0.225 mg once a day, and if tablets available are 75 µg each, three tablets are needed per day. Proper dose calculation takes into account factors like patient mass, organ function, and potential side effects.
Step-by-step explanation:
The dose of a medication is an essential aspect of its administration and requires careful calculation to achieve therapeutic effectiveness without causing significant toxicity. In the case of Synthroid, which is prescribed at a dosage of 0.225 mg to be taken once a day, we must determine how many tablets are required based on the available tablet strength. If the tablets in stock are 75 µg each (which is equivalent to 0.075 mg), we can calculate that three tablets are needed to achieve the prescribed daily dose (since 0.075 mg x 3 = 0.225 mg). It's important to check whether the calculated dose makes sense and is consistent with recommended therapeutic exposures. Factors such as patient mass (especially in children), liver and kidney function, and potential side effects should all be considered when determining the proper medication dose.