Urinary Tract Infections: Definition & Classification

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Questions and Answers

What is considered as significant bacteriuria in a urine sample?

  • Presence of < 105 colony forming units (CFU)/ml
  • Significant dysuria symptom
  • Presence of > 105 colony forming units (CFU)/ml (correct)
  • Absence of bacteria in urine

Which part of the urinary system is affected in pyelonephritis?

  • Urethra
  • Bladder
  • Kidney (correct)
  • Large Intestine

When does bacteriuria become asymptomatic bacteriuria?

  • When it is accompanied by dysuria
  • When it reaches > 105 colony forming units (CFU)/ml (correct)
  • When it is present in the bladder
  • When it is detected in men

What percentage of urinary tract infections are caused by Escherichia coli?

<p>75-90% (C)</p> Signup and view all the answers

Which group of individuals generally have 'complicated' UTIs?

<p>Children and the elderly (A)</p> Signup and view all the answers

What is the most common location infected in a lower UTI?

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

Which enzyme is produced by extended-spectrum beta-lactamase (ESBL) producing E.coli?

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

Why are ESBL producing E.coli infections considered a growing cause of hospital-acquired infections?

<p>They are resistant to most beta-lactam antibiotics. (B)</p> Signup and view all the answers

What is the normal environment of the urinary tract in terms of microorganisms?

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

Which of the following is NOT a common microorganism associated with UTIs according to the text?

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

Why are UTIs uncommon in men according to the text?

<p>Men have shorter urethras. (C)</p> Signup and view all the answers

What factor increases the risk of developing a UTI according to the text?

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

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