Pharmacokinetics involves the study of how a drug is absorbed, distributed, metabolized, and excreted by the body. Key concepts include:
Absorption: How a drug enters the bloodstream Distribution: How a drug is transported to its site of action Metabolism: How a drug is broken down, usually in the liver Excretion: How a drug is eliminated from the body, typically via the kidneys or liver
Pharmacodynamics examines how a drug affects the body, focusing on the mechanism of action, therapeutic effects, and side effects. Understanding these concepts helps nurses predict patient responses and adjust care plans accordingly.
