Pharmacology Basics Quiz
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Questions and Answers

What is the purpose of an enteric coating for oral drugs?

  • To speed up the drug release in the stomach
  • To protect the drug from stomach acid and deliver it to the intestine (correct)
  • To enhance drug absorption in the stomach
  • To protect the drug from enzymes in the small intestine

    • Which route of drug administration is considered the safest and most common method?

  • Enteral (correct)
  • Parenteral
  • Intravenous
  • Topical

    • Why are extended-release formulations advantageous for drugs with short half-lives?

  • They have no advantages for drugs with short half-lives
  • They speed up drug absorption
  • They require less frequent dosing (correct)
  • They result in larger peaks and troughs in plasma concentration

    • What is the downside of oral drug administration?

    <p>Complicated pathways involved in drug absorption</p> Signup and view all the answers

    When would enteric-coated preparations be useful?

    <p>For protecting acid labile drugs from stomach acid</p> Signup and view all the answers

    Why is enteral administration particularly advantageous for drugs requiring long-term treatment?

    <p>It facilitates direct absorption into the bloodstream</p> Signup and view all the answers

    Which class of drug-body interaction determines the group in which the drug is classified?

    <p>Pharmacodynamic processes</p> Signup and view all the answers

    What is the significance of pharmacokinetic processes in the administration of drugs to a patient?

    <p>Determining the elimination pathway of the drug</p> Signup and view all the answers

    Which process allows entry of the drug into plasma from the site of administration?

    <p>Absorption</p> Signup and view all the answers

    What happens to the drug and its metabolites as part of pharmacokinetic processes?

    <p>They are eliminated from the body in urine, bile, or feces</p> Signup and view all the answers

    What is the most complex aspect of oral drug absorption?

    <p>The low gastric pH inactivation of some drugs</p> Signup and view all the answers

    In what way is buccal administration different from sublingual administration?

    <p>Sublingual administration allows for direct absorption into the bloodstream, while buccal does not</p> Signup and view all the answers

    Why is parenteral administration considered an alternative to enteral administration?

    <p>It enables rapid drug onset and bypasses the gastrointestinal tract</p> Signup and view all the answers

    What is the primary disadvantage of topical drug administration compared to enteral and parenteral routes?

    <p>Lack of direct absorption into the bloodstream</p> Signup and view all the answers

    What is the primary advantage of parenteral administration of drugs?

    <p>Avoidance of first-pass metabolism and the harsh GI environment</p> Signup and view all the answers

    Which type of drug is best suited for intravenous (IV) administration?

    <p>Neuromuscular blocker rocuronium</p> Signup and view all the answers

    What are the drawbacks of parenteral administration?

    <p>Potential for local tissue damage and infections</p> Signup and view all the answers

    Why is subcutaneous administration suitable for some drugs?

    <p>To provide a slow, sustained release of the drug</p> Signup and view all the answers

    What is the primary advantage of using enteric-coated preparations for certain drugs?

    <p>Protection from stomach acid</p> Signup and view all the answers

    Why are extended-release formulations advantageous for drugs with short half-lives?

    <p>They maintain concentrations within the therapeutic range over a longer duration</p> Signup and view all the answers

    What are the primary advantages of sublingual and buccal routes of drug absorption?

    <p>Rapid absorption and ease of administration</p> Signup and view all the answers

    Why are enteric-coated preparations particularly useful for drugs that are irritating to the stomach?

    <p>They minimize contact with stomach acid</p> Signup and view all the answers

    Which type of medications may benefit the most from extended-release formulations?

    <p>Medications with short half-lives</p> Signup and view all the answers

    What is the primary function of an enteric coating for oral drugs?

    <p>To prevent drug degradation in the acidic stomach environment</p> Signup and view all the answers

    In what scenario would sublingual or buccal administration be particularly advantageous?

    <p>For drugs that need rapid absorption</p> Signup and view all the answers

    Why are enteric-coated preparations useful for drugs like aspirin?

    <p>To prevent irritation to the stomach lining</p> Signup and view all the answers

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