131, Physicians often treat thyroid cancer with a radioactive form of iodine called iodine-131 (1311). The...
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131, Physicians often treat thyroid cancer with a radioactive form of iodine called iodine-131 (1311). The radiological half-life of I is approximately 8 days, but the 131, biological half-life for most individuals is 4.2 days. The biological half-life is shorter because in addition to "I being lost to decay, the iodine is also excreted from the body in urine, sweat, and saliva. For a patient treated with 200 mCi (millicuries) of 1311, the radioactivity level R (in mCi) after t days is given by R=200 (2)¯¹/4.2 (a) State law mandates that the patient stay in an isolated hospital room for 2 days after ingesting Round to the nearest whole unit. 131. I. Determine the radioactivity level at the end of 2 days. (b) After the patient is released from the hospital, the patient is directed to avoid direct human contact until the radioactivity level drops below 17 mCi. For how many days after leaving the hospital will the patient need to stay in isolation? Round to the nearest tenth of a day. 131, Physicians often treat thyroid cancer with a radioactive form of iodine called iodine-131 (1311). The radiological half-life of I is approximately 8 days, but the 131, biological half-life for most individuals is 4.2 days. The biological half-life is shorter because in addition to "I being lost to decay, the iodine is also excreted from the body in urine, sweat, and saliva. For a patient treated with 200 mCi (millicuries) of 1311, the radioactivity level R (in mCi) after t days is given by R=200 (2)¯¹/4.2 (a) State law mandates that the patient stay in an isolated hospital room for 2 days after ingesting Round to the nearest whole unit. 131. I. Determine the radioactivity level at the end of 2 days. (b) After the patient is released from the hospital, the patient is directed to avoid direct human contact until the radioactivity level drops below 17 mCi. For how many days after leaving the hospital will the patient need to stay in isolation? Round to the nearest tenth of a day.
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Related Book For
University Physics with Modern Physics
ISBN: 978-0133977981
14th edition
Authors: Hugh D. Young, Roger A. Freedman
Posted Date:
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