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 (C)</p> Signup and view all the answers

When would enteric-coated preparations be useful?

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

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

<p>Absorption (B)</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 (B)</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 (A)</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 (B)</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 (B)</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 (C)</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 (C)</p> Signup and view all the answers

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

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

What are the drawbacks of parenteral administration?

<p>Potential for local tissue damage and infections (B)</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 (C)</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 (A)</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 (B)</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 (A)</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 (C)</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 (C)</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 (B)</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 (B)</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 (D)</p> Signup and view all the answers

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