Painful bone metastases are common in advanced prostate cancer. Physicians often order treatment with strontium-89 (89Sr)

glamrockqueen7 2021-09-22 Answered

Painful bone metastases are common in advanced prostate cancer. Physicians often order treatment with strontium-89 (89Sr), a radionuclide with a strong affinity for bone tissue. A patient is given a sample containing 4 mCi of 89Sr.
If 20% of the 89Sr remains in the body after 90 days, write a function of the form Q(t)=Q0ekt to model the amount Q(t) of radioactivity in the body t days after the initial dose.
b. what is the biological half-life of 89Sr under this treatment? Round to the nearest tenth of a day.

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Answered 2021-09-23 Author has 89 answers

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