The recommended dosage of I-131 for a test is 4.2 μCi per kg of body mass.How many millicuries should be given to a 55 kg patient? (1 mCi = 1000 μCi)?

Question

Quizplus · Accepted Answer

To convert μCi to mCi, we need to divide the value by 1000.
Given, the recommended dosage of I-131 for a test is 4.2 μCi per kg of body mass. 
For a 55 kg patient, the dosage = 4.2 × 55 = 231 μCi. 
To convert μCi to mCi, we divide 231 by 1000, which gives 0.231 mCi. 
Therefore, the best choice is B, which is 0.23 mCi (rounded to two decimal places).

The Recommended Dosage of I-131 for a Test Is 4