What This Document Is
These pharmacology notes cover the fundamental principles of pharmacokinetics – how the body influences drug action. It details the four core processes of absorption, distribution, metabolism, and excretion, explaining how a drug moves through the body from administration to elimination. The notes focus on factors influencing these processes and their impact on drug availability and effectiveness.
Why This Document Matters
This resource is essential for nursing students in a Pharmacology I course (like NURS 3221 at Georgia Southern University) and anyone needing a foundational understanding of how drugs interact with the body. Understanding pharmacokinetics is crucial for safe and effective medication administration, dosage calculations, and anticipating potential drug interactions. It provides context for *why* drugs are given in specific ways and *how* individual patient factors can alter drug response.
Common Limitations or Challenges
This document provides a theoretical overview. It does not include clinical case studies, detailed drug monographs, or specific disease state applications. It’s a foundational piece and requires supplementation with practical application and further study of individual medications. It also doesn’t cover pharmacodynamics – the study of what the drug does to the body.
What This Document Provides
The full document includes detailed explanations of:
* Absorption methods (passive transport, active transport, pinocytosis) and factors affecting absorption (blood flow, gastric emptying, exercise).
* The “first-pass effect” and its impact on bioavailability.
* Distribution principles, including vascular permeability, protein binding (albumin, AGP), and the blood-brain barrier.
* Factors affecting bioavailability, such as drug form, route of administration, and liver function.
* An overview of protein binding and its implications for drug activity.
This preview focuses on outlining the *topics* covered. It does *not* include detailed explanations of the transport mechanisms, specific drug examples, or the full scope of factors influencing bioavailability and distribution.