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

Question

Quizplus · Accepted Answer

First, we need to convert the recommended dosage from microcuries to millicuries.

4.2 microcuries/kg x 55 kg = 231 microcuries

To convert microcuries to millicuries, we divide by 1,000:

231 microcuries ÷ 1,000 = 0.231 millicuries, or 0.23 mCi

Therefore, the correct answer is B.

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