A Patient Is Injected with a 5

question 88

Multiple Choice

A patient is injected with a 5.0 M solution of gallium citrate containing radioactive gallium-68 for a PET study. The half-life of gallium-68 is 9.4 hr. How long does it take for the activity of this isotope to drop to 1% of its initial value?

• A)18 hr
• B)25 hr
• C)32 hr
• D)41 hr
• E)62 hr

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Definitions:

Treatment Programs

Treatment programs are structured plans or interventions designed to address specific health issues, disorders, or diseases, and may include medication, therapy, counseling, or lifestyle modifications.

Attendance Sheet

is a document used to record the presence of individuals at an event, meeting, or class.

Compound Interest

Interest calculated on the initial principal, which also includes all of the accumulated interest from previous periods on a deposit or loan.

Simple Interest

Interest calculated on the principal portion of a loan or deposit, without compounding on the interest previously earned.