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Question 10.4: A patient must be given a 4.5-mCi dose of iodine-131, which ...

A patient must be given a 4.5-mCi dose of iodine-131, which is available as a solution that contains 3.5 mCi/mL. What volume of solution must be administered?

Analysis

Use the amount of radioactivity (mCi/mL) as a conversion factor to convert the dose of radioactivity from millicuries to a volume in milliliters.

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The dose of radioactivity is known in millicuries, and the amount of radioactivity per unit volume (3.5 mCi/mL) is also known. Use 3.5 mCi/mL as a millicurie–milliliter conversion factor.

10.4

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