Streptococci
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Questions and Answers

What differentiates formig from staph on blood agar in terms of their ability to lyse RBCs?

  • Staph causes seethrough lysis, while formig causes incomplete lysis.
  • Formig lyses RBCs incompletely, while staph can lyse RBCs completely.
  • Formig causes no lysis of RBCs, while staph can cause partial lysis.
  • Formig can lyse RBCs completely, while staph can only cause incomplete lysis. (correct)
  • Why is it important for patients to finish the course of antibiotics (ABX) as prescribed?

  • Incomplete ABX course can cause generalized systemic symptoms.
  • Discontinuation of ABX will lead to recurrent infections with different bacteria.
  • Discontinuation of ABX can lead to prolonged illness and potential kidney damage. (correct)
  • ABX resistance increases with incomplete courses of treatment.
  • Which bacterium is susceptible to treatment with beta-lactamase antibiotics?

  • Vancomycin-resistant Staph aureus
  • Group A strep (correct)
  • Streptococcus pneumoniae
  • Enterococci
  • What characteristic differentiates Group A strep from Staph aureus in terms of antibiotic resistance?

    <p>Group A strep is susceptible to beta-lactamase antibiotics, while Staph aureus is resistant.</p> Signup and view all the answers

    What can happen if serum levels of bacteriocidal antibiotics are not maintained at the required levels?

    <p>The bacterial infection may persist and result in prolonged illness.</p> Signup and view all the answers

    Why is it crucial for patients to adhere to the prescribed antibiotic regimen?

    <p>Non-compliance can potentially lead to increased mortality rates due to systemic complications.</p> Signup and view all the answers

    What is the main difference between Group A strep and Staph aureus in terms of their interaction with antibodies on blood agar plate?

    <p>Incomplete lysis for Group A strep, complete lysis for Staph aureus</p> Signup and view all the answers

    What consequence can arise from discontinuation of antibiotics (ABX) before completing the course?

    <p>Prolonged illness and potentially kidney damage</p> Signup and view all the answers

    Why is it essential to maintain bacteriocidal antibiotic levels in the blood during treatment?

    <p>To ensure complete eradication of the pathogen</p> Signup and view all the answers

    How does Group A strep differ from Staph aureus in terms of antibiotic resistance?

    <p>Group A strep is susceptible to beta-lactamase antibiotics, Staph aureus is not</p> Signup and view all the answers

    In what scenario might serum levels of bacteriocidal antibiotics become critical?

    <p>For full eradication of the pathogen</p> Signup and view all the answers

    What danger can arise if Enterococci become resistant to vancomycin?

    <p>Limited treatment options due to vancomycin ineffectiveness</p> Signup and view all the answers

    How does Strep pneumoniae resistance to beta-lactamase antibiotics compare to Enterococci resistance?

    <p>Strep pneumoniae can become resistant to beta-lactamase antibiotics but not Enterococci</p> Signup and view all the answers

    What is the consequence of discontinuing antibiotics (ABX) before completing the course?

    <p>Increasing the mortality rate</p> Signup and view all the answers

    In what way does Group A strep differ from Staph aureus in terms of their interaction with antibodies on blood agar plate?

    <p>Group A strep causes complete lysis</p> Signup and view all the answers

    What is the main difference between Strep pneumoniae and Enterococci in terms of their resistance to antibiotics?

    <p>Enterococci are resistant to B lactamase antibiotics</p> Signup and view all the answers

    Why is it important for patients to maintain bacteriocidal antibiotic levels in their blood during treatment?

    <p>To fully eliminate the infectious agent</p> Signup and view all the answers

    Which bacteria is susceptible to treatment with beta-lactamase antibiotics?

    <p>Group A strep</p> Signup and view all the answers

    What can happen if Enterococci become resistant to vancomycin?

    <p>Prolonged illness potentially leading to kidney damage</p> Signup and view all the answers

    In what scenario might serum levels of bacteriocidal antibiotics become critical?

    <p>When discontinuation of ABX can cause prolonged illness</p> Signup and view all the answers

    What differentiates Group A strep from Staph aureus on blood agar in terms of their interaction with antibodies?

    <p>Incomplete lysis on blood agar plate</p> Signup and view all the answers

    How does Strep pneumoniae resistance to beta-lactamase antibiotics compare to Enterococci resistance?

    <p>Enterococci are more resistant than Strep pneumoniae</p> Signup and view all the answers

    What consequence can arise from inadequate compliance with ABX therapy?

    <p>Prolonged illness potentially leading to kidney damage</p> Signup and view all the answers

    Why is it crucial for patients to maintain bacteriocidal antibiotic levels during treatment?

    <p>To fully eliminate the bacterial infection and prevent complications</p> Signup and view all the answers

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