E. coli Pathogenesis and Diseases Quiz
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Questions and Answers

What is the primary function of adhesins produced by certain bacteria in the urinary tract?

  • To prevent the elimination of bacteria in voided urine (correct)
  • To enhance the mucoid appearance of isolated colonies
  • To stimulate an inflammatory response by lysing erythrocytes
  • To degrade the cells lining the bladder and upper urinary tract

    • What is the characteristic feature of Klebsiella colonies?

  • They are resistant to all β-lactam antibiotics
  • They have a prominent capsule (correct)
  • They produce large quantities of urease
  • They lyse erythrocytes and stimulate an inflammatory response

    • What is the result of P.mirabilis producing large quantities of urease in the urinary tract?

  • The inhibition of cytokine release
  • The stimulation of an inflammatory response
  • The formation of renal stones (correct)
  • The reduction of urine pH

    • What is the purpose of using selective media in the culture of Enterobacteriaceae?

    <p>To separate lactose-fermenting from nonfermenting genera</p> Signup and view all the answers

    What is the concern with the use of carbapenems in the treatment of Enterobacteriaceae infections?

    <p>They are no longer effective against some organisms due to widespread resistance</p> Signup and view all the answers

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