Painful bone metastases are common in advanced prostate cancer. Physicians often order treatment with strontium-89"sr),

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Painful Bone Metastases Are Common In Advanced Prostate Cancer Physicians Often Order Treatment With Strontium 89 Sr 1 (31.48 KiB) Viewed 25 times

Painful bone metastases are common in advanced prostate cancer. Physicians often order treatment with strontium-89"sr), a radionuclide with a strong affinity for bone tissue. A patient is given a sample containing 4 mCi of Sr. 89 Part: 0/2 Part 1 of 2 89 (a) IF 25% of the sr remains in the body after 85 days, write a function of the form 96)-2,4-"' to model the amount 0 %) of radioactivity in the body t days after the initial dose. Round the value of k to five decimal places. Do not round intermediate calculations. -0.016314 00) - 4 х Part: 1/2 Part 2 of 2 (b) What is the biological half-life of Sr under this treatment? Round to the nearest day. Do not round intermediate calculations. The biological half-life or "sr is approximately days. $ X