Antimicrobial Chemotherapy Mechanism of Action
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Questions and Answers

Which antibiotic shares a B-lactam ring in its molecular structure?

  • Penicillins (correct)
  • Linezolid
  • Macrolides
  • Quinolones
  • What is the mechanism of action of Vancomycin?

  • Inhibition of viral replication
  • Inhibition of bacterial cell wall synthesis (correct)
  • Inhibition of protein synthesis
  • Inhibition of nucleic acid synthesis (DNA)
  • What is the general adverse effect associated with broad-spectrum antibiotics?

  • Vitamin B complex deficiency
  • Superinfection (correct)
  • Hypersensitivity or allergic reactions
  • Resistance
  • What is the treatment for superinfection caused by broad-spectrum antibiotics with incomplete absorption?

    <p>Stop antibiotic and administer Metronidazole orally for bacteria</p> Signup and view all the answers

    Which antibiotics decrease bacterial cell wall synthesis?

    <p>Penicillins &amp; Cephalosporin</p> Signup and view all the answers

    Which antibiotic is inactivated by B-lactamase and is usually combined with clavulanic acid or sulbactam to cover B-lactamase producing bacteria?

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

    Which antibiotic is only effective against Gram-positive bacteria and is commonly used to treat Methicillin-resistant Staphylococcus Aureus (MRSA)?

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

    Which antibiotic has a high incidence of diarrhea and pseudomembranous colitis as a side effect due to superinfection, and is similar in mechanism to erythromycin?

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

    Which antibiotic class tends to be deposited in growing bones and teeth causing yellow discoloration of teeth due to its chelating properties with calcium?

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

    Which antibiotic inhibits nucleic acid synthesis (DNA) and should have its empiric use in minor infections discouraged?

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

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