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

glamrockqueen7

glamrockqueen7

Answered question

2021-09-22

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.

Answer & Explanation

d2saint0

d2saint0

Skilled2021-09-23Added 89 answers

a. Q(t)=Qoe0.017882t
b. t~39 days

Do you have a similar question?

Recalculate according to your conditions!

Ask your question.
Get an expert answer.

Let our experts help you. Answer in as fast as 15 minutes.

Didn't find what you were looking for?