A Sample of Cerium-141 for a Diagnostic Test Was Dissolved

question 58

Multiple Choice

A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 mCi/mL. If the patient undergoing the test needs a dose of 10. mCi, how much of the solution should be injected into the patient?

• A)45 mL
• B).45 mL
• C)2.2 mL
• D)22 mL
• E)4.5 mL

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