Nur 641 E Final Exam Study Guide Grand Canyon University Questions with correct Answers

Nur 641 E Final Exam Study Guide Grand Canyon University Questions with correct Answers absorption, distribution, metabolism, excretion - ️️ Pharmacokinetics involves absorption from the administration site either directly or indirectly in the blood plasma - ️️ Pharmacokinetic absorption reversibly or irreversibly move from the bloodstream into the interstitial and intracellular fluid - ️️ Parmacokinetic distribution biotransformed via hepatic metabolism or by other tissue - ️️ Pharmacokinetics metabolism 1. highest bioavailability 2. places entire does into venin thus bypassing absorption 3. avoids hepatic first pass metabolism in the liver - ️️ Intravenous medications usually reached within 4-5 half lives of the drug - ️️ steady state medication time required for the elimination process to reduce concentration of the drug to one half what it was at initial administration mines drug frequency 4. predicts length of toxic effects 5. constant first order pharmacokinetics of a drug - ️️ drug half life drug is metabolized at a constant rate per unit - ️️ zero order (nonlinear) metabolizes 50% drugs inhibit: grapefruit juice - increase drug -> adverse effects may have enhanced activity with any other CYP3A4 - ️️ CYP3A4 1. discovery or laboratory for development 2. Phase 1 begins with animal testing 3. phase 2 human subjects 4. compare drug to placebo or other drug that is effective