# chemistry

The dosage of technetium-99m for a lung scan is 20 μCi/kg of body weight.How many millicuries should be given to a 65.0-kg patient? (1mCi=1000μCi)Suppose a person absorbed 54mrads of alpha radiation. What would be the dose equivalent in mrems?

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1. 20 uCi = 0.020 mCi
0.020 mCi/kg x 65 kg = ? mCi.

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