25 Questions
Which of the following best describes Mr. F.'s symptoms after consuming the asparagus?
He had double vision and sought medical attention.
What did Mr. F. do after realizing the asparagus smelled funny?
He rinsed his tongue under water.
Which of the following best describes the meaning of the word 'drug' in the context of this book?
An exogenous chemical that significantly alters cellular functions
What is the definition of a drug according to the text?
A chemical that alters cellular functions in low doses
What are the sites of action of drugs?
Points at which drugs interact with molecules located on or in cells of the body
What is the study of the effects of drugs on the nervous system and behavior called?
Psychopharmacology
Which route of drug administration is commonly used to treat lung disorders?
Inhalation
Which route of drug administration involves placing the drug beneath the tongue?
Sublingual administration
Which route of drug administration involves injecting the drug directly into the brain?
Intracerebroventricular administration
Which route of drug administration involves absorbing the drug directly through the skin?
Topical administration
Which route of administration is the fastest and allows the drug to reach the brain within a few seconds?
Intravenous (IV) injection
What is the process by which drugs are absorbed, distributed within the body, metabolized, and excreted called?
Pharmacokinetics
Which section of the chapter discusses the sites of drug actions?
The second section
Which molecules of drugs must enter the central nervous system (CNS) to be effective?
Only molecules of drugs that affect cells of the CNS
Which route of drug administration allows for the most rapid effects in the brain?
Intravenous injection
What is the main factor that determines the rate at which a drug reaches sites of action within the brain?
Lipid solubility
Why do drug addicts prefer heroin to morphine, even though the molecules of the two drugs are equally effective in the brain?
Heroin produces a more intense 'rush'
How can the effectiveness of a drug be best measured?
By the size of the dose-response curve
Which of the following best describes the affinity of a drug for its binding sites?
The readiness with which the drug attaches to the binding sites
What is the most desirable characteristic of a drug in terms of its affinity for binding sites?
High affinity for sites of action that produce therapeutic effects
What is one of the goals of research by drug companies?
To find chemicals with high affinities for therapeutic sites of action
Which of the following is NOT a reason why drugs vary in their effectiveness?
Different drugs may have different concentrations in the blood
What is the purpose of a drug's margin of safety?
To measure the difference between the dose-response curves for therapeutic effects and adverse side effects
What is the therapeutic index of a drug?
The ratio of the toxic dose to the effective dose
Which of the following is true about the dose-response curve for a drug?
Increasing the dose of the drug never produces any more effect after reaching the point of maximum effect
Understanding Drug Dosage and Body Weight: Test your knowledge on how body weight affects drug dosage and the resulting effects. Explore the relationship between drug concentration, subject weight, and dose strength. Get ready to uncover the science behind dosage adjustments!
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