27. A physician has ordered a total daily dose of 0.5 mg of a medication to be divided into four equal doses. How much medication should each dose contain,in mcg?
Answer: C
Each dose should contain 125 mcg of the medication.
Dividing the total daily dose of 0.5 mg into four equal doses results in each dose containing 0.125 mg, which is equivalent to 125 mcg.
A) 0.125
This option represents the dose in milligrams, not micrograms. While 0.125 mg is the correct amount in milligrams for each dose, the question specifically asks for the dosage in micrograms, making this option incorrect.
B) 12.5
12.5 mcg is not the correct answer. When converting the total daily dose of 0.5 mg into micrograms, each dose is calculated as 125 mcg. Thus, this option is incorrect.
C) 125
This option is correct as it reflects the correct conversion from milligrams to micrograms. Since 0.5 mg equals 500 mcg, dividing this by four doses gives 125 mcg per dose.
D) 200
200 mcg is not correct because it exceeds the calculated amount per dose. Each dose is 125 mcg, so this option does not align with the required medication dosage.
Conclusion
The correct answer is 125 mcg per dose, as it accurately reflects the division of the total daily dose of 0.5 mg into four equal parts when converted into micrograms. All other options either misrepresent the amount needed or do not conform to the required measurement unit specified in the question.