Chemistry, 18.10.2019 21:50 DerikF9478
Radioactive isotopes are used as contrast dyes to study soft tissues such as the gastrointestinal tract. the radiocontrast dyes are considered safe because the isotopes have short half-lives and the isotopes coat the gi tract and are not absorbed by normal tissue. if a patient ingests 7.50 mg of barium sulfate, how long until the barium-141 is 99% out of the patient's system if the half-life barium-141 is 18.27 minutes?
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Radioactive isotopes are used as contrast dyes to study soft tissues such as the gastrointestinal tr...