NURS215 Lecture 3: Lecture 3 Pharmacodynamics Q&A's Study Guide

• School: University of Alberta
• Department: Nursing
• Course: NURS215
• Professor: Helena Schaefer

Document Summary

A: where is the interaction between drug and receptor. A: if we have the ideal concentration of the drug then we have optima receptor binding. Q: drugs have a target and will bind to its receptors: this reaction may be 3. A: reversible (b/c one drug can bump off another drug) Saturable (once we reach maximum dose =saturated, more drug won"t create more effect) Specific (note: remember vd): some bind bind directly to/in bacteria/viruses. Most on protein structure receptors on the surface of cell membrane. Q: there is only a finite number of receptors, b/c of this, sometimes we get ___ ___, which may be non-therapeutic. Q: what targets do drugs bind to? (2) Q: receptors on cells may bind to (2) Endogenous substances such as hormones, neurotransmitters a change in the cell. A: a specific chemical structure, lock and key fit. A: drugs need to match the existing target receptor binding site.