20 Questions
Where does the majority of drug absorption take place due to the anatomical structure?
Small intestine
What is the principal site of drug metabolism?
Liver
What is the study of substances used to prevent, diagnose, and treat disease called?
Medical pharmacology
What is the process by which drugs diffuse or are transferred from intravascular space to extravascular space called?
Distribution
What is the relation of the individual’s genetic makeup to his or her response to specific drugs called?
Pharmacogenomics
What is the definition of pharmacology?
The study of substances that interact with living systems through chemical processes
How can drugs be obtained?
Through synthetic chemicals, plants, animals, or genetic engineering
Which statement best defines a drug?
A substance that brings about a change in biologic function through its chemical actions
What is the process of altering the DNA in an organism’s genome known as?
Genetic engineering
Which term refers to a chemical substance of known structure that produces a biological effect when administered to a living organism?
Drug
Which route of drug administration is considered the safest, most common, convenient, and economical method?
Oral administration
Where do most drugs absorbed from the gastrointestinal (GI) tract enter before they are distributed into the general circulation?
Liver
What is the major site for drug absorption due to its larger absorptive surface in the alimentary canal?
Duodenum
Which route of drug administration has pathways involved in absorption considered the most complicated?
Oral administration
What is the process that some drugs undergo in the liver, where they may be extensively metabolized before entering the systemic circulation?
First-pass metabolism
What is the advantage of using the rectal route for drug administration?
Prevents destruction of the drug in the gastrointestinal environment
Why is parenteral administration used for certain drugs?
To introduce drugs directly into the systemic circulation for drugs that are poorly absorbed from the GI tract
Which route of administration is effective and convenient for patients with respiratory disorders?
Oral inhalation
What is the advantage of using intrathecal/intraventricular routes of drug administration?
Introduces drugs directly into the cerebrospinal fluid
Why are drugs that are gases administered via inhalation?
To provide rapid delivery of the drug across the large surface area of the respiratory tract
This quiz covers the fundamental concepts of pharmacology, including the definition of pharmacology and drugs, their chemical actions, and their impact on biologic functions. Explore the study of substances that interact with living systems and their role in activating or inhibiting normal body processes.
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