Chem 111 Radioisotope Laboratory Activity Therapy: Rodrigo was admitted to undergo Radioactive Iodine therapy to complete his treatment of thyroid cancer. He was given 150 mCi of I-131 on Friday at 1:00pm. Due to a sudden heart attack, he died on Sunday, at 8:00am. Given a physical half-life of 8 days, and a biological half-life of 80 days, how much radioactive Iodine is left in the corpse of Rodrigo at the time of his death? Radioimmunoassay: Various hormones are tested using radioimmunassays. Radioactive tracers are present in the test tube prior to placing in the serum (blood). Several techniques are applied but in essence, radioactivity is then measured after a “wash-out” of the serum and the tracer is done. Youtube Guide: https://urlzs.com/2UMty What is the expected radioactivity reading in a sample with a high amount of the hormone of interest? a.) There will be a high amount of radiation in the test tube because the hormone of interest will bind with the radioactive tracer. b.) There will be a low amount of radiation in the test tube because the hormone of interest will displace the radioactive tracers during “wash-out”. c.) There will be a high amount of radiation in the test tube because the hormone of interest is not washed out with the radioactive tracer. d.) There will be a low amount of radiation in the test tube because the hormone of interest does not bind with the radioactive tracer. Imaging: 10 mCi of F-18 FDG is needed to scan a patient for PET. If the cylotron is located in Quezon City, and it will take 1.5 hours for the tracer to be delivered in the Philippine General Hospital, how much activity should the tracer have before it leaves the cyclotron facility?
