Nsc 330/ Week 1 Part 3 Questions With Correct Answers

NSC 330/ WEEK 1 PART 3 Questions With Correct Answers

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NSC 330/ WEEK 1 PART 3 Questions With Correct Answers Pharmocodynamics - ANS-what the drug does to the body Drug Receptor Interaction - ANS-Can either mimic (agonist) or block (antagonist) the actions of that chemical Agonist - ANS-drugs that produce effects similar to those produced by naturally occurring hormones, neurotransmitters and other natural substances Antagonist - ANS-drugs that inhibit cell function by occupying receptor sites Agonist fits right onto the receptor and _____ the activity. - ANS-enhance Antagonist _______ the receptor so that the cellular activity is diminished. - ANS-blocks Non-receptive Drug Actions - ANS-antacids, osmotic diuresis, charcoal, and metal chelating agents Antacids - ANS-act chemically to neutralize hydrochloric acid. No binding of receptors. Just works on the stomach acid. osmotic diuretics - ANS-increase in osmolarity of plasma and pull water out of tissues into the bloodstream Charcoal - ANS-absorbs toxic substances (inhibits GI absorption) Used for toxic doses and overdoses and does not use receptors.Metal-chelating agents - ANS-combine with toxic metals (lead) to form a complex that can be more readily excreted efficacy - ANS-how well a drug produces its desired effect maximum effect the drug can achieve potency - ANS-comparison of doses of 2 different drugs that are