Pharmacokinetics Quiz - Drug Absorption Concepts
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Questions and Answers

Which pharmacokinetic process involves the movement of drugs from the site of administration to circulating fluids?

  • Excretion
  • Distribution
  • Absorption (correct)
  • Metabolism
  • What best describes how molecules typically move during diffusion or passive transport?

  • Against an electrochemical gradient
  • From an area of low concentration to high concentration
  • Involving active energy expenditure
  • From an area of high concentration to low concentration (correct)
  • In which environment is aspirin primarily absorbed due to its nonionized form?

  • Alkaline environment
  • High lipid concentration
  • Acidic environment (correct)
  • Neutral environment
  • Which factor does NOT affect drug absorption?

    <p>Age of the patient</p> Signup and view all the answers

    What is the bioavailability percentage of lidocaine and why is it affected?

    <p>35% due to destruction in gastric acid and liver metabolism</p> Signup and view all the answers

    Cotransport in active transport refers to which of the following?

    <p>Simultaneous movement of multiple chemicals across a membrane</p> Signup and view all the answers

    What physical property significantly influences the distribution of medications throughout the body?

    <p>Amount of blood flow to body tissues</p> Signup and view all the answers

    What represents the greatest barrier for many drugs in the body?

    <p>Membrane crossing obstacles</p> Signup and view all the answers

    Why are acidic drugs typically best absorbed in acidic environments?

    <p>They exist in a nonionized form allowing easier absorption</p> Signup and view all the answers

    Which factor does NOT affect the bioavailability of a drug?

    <p>Patient's age</p> Signup and view all the answers

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