A 65-kg person is accidentally exposed for 240 s to a 15-mCi source of beta radiation coming from a sample of . (a) What is the activity of the radiation source in disintegrations per second? In becquerels? (b) Each beta particle has an energy of , and 7.5% of the radiation is absorbed by the person. Assuming that the absorbed radiation is spread over the person’s entire body, calculate the absorbed dose in rads and in grays. (c) If the RBE of the beta particles is 1.0, what is the effective dose in mrem and in sieverts? (d) How does the magnitude of this dose of radiation compare with that of a mammogram (300 mrem)?
Drugs and Individual Behavior Week 2 Notes Tuesday, August 30, 2016 Continuing from Week 1 notes, following a drug through the body… ● Temporarily skipping Drug Action, because it’s not pharmacokinetics, it’s pharmacodynamics. ● Termination of Effect, Metabolism and/or Elimination ○ Why do drug effects come to an end ■ A big part of it is going to involve your liver. (See First Pass Metabolism) It’s our primary chemical metabolizer. ■ Drug may be “biotransformed” or metabolized by the liver, & then excreted by the kidney. This is the