Factors and Pathogens in Urinary Tract Infections (UTIs)
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Questions and Answers

What is the commonest pathogenic organism isolated in UTIs?

  • Staphylococcus
  • K.pneumoniae
  • Proteus
  • E.coli (correct)
  • Which type of media is commonly used in laboratories for the detection of urinary tract infections?

  • Sabouraud agar
  • MacConkey agar (correct)
  • Chocolate agar
  • Blood agar
  • What concentration of colony forming units (CFU) per milliliter is typically required to confirm a UTI in adult women?

  • $1,000$ CFU/mL
  • $50,000$ CFU/mL
  • $100,000$ CFU/mL (correct)
  • $10,000$ CFU/mL
  • What is the most common pathogen causing urinary tract infections in adults?

    <p>Escherichia coli</p> Signup and view all the answers

    For clean catch samples in adults, what level of CFU/milliliter usually indicates infection?

    <p>$100,000$ CFU/mL</p> Signup and view all the answers

    Which statement about chromogenic culture media is true?

    <p>They produce color changes based on bacterial metabolism</p> Signup and view all the answers

    In men, what level of pathogen growth per milliliter of urine is considered a sign of urinary tract infection?

    <p>$1,000$ CFU/mL</p> Signup and view all the answers

    In the management of urinary tract infections, what is the primary action of nitrofurantoin?

    <p>Disruption of nucleic acid synthesis</p> Signup and view all the answers

    What factor is NOT mentioned as bearing significant risk for recurrent UTIs?

    <p>Exercise habits</p> Signup and view all the answers

    Which age group is most affected by the burden of urinary tract infections?

    <p>Adults over 65 years old</p> Signup and view all the answers

    What is the typical range of bacterial growth required to confirm a UTI according to laboratory guidelines?

    <p>$100,000 - 200,000$ CFU/mL</p> Signup and view all the answers

    What is a concerning consequence of recurrent urinary tract infections if left untreated?

    <p>Chronic kidney disease</p> Signup and view all the answers

    What is the chromogenic culture media used for?

    <p>To test for urinary tract infection pathogens</p> Signup and view all the answers

    Which of the following is NOT discussed in the text as a treatment option for urinary tract infections?

    <p>Antiviral medications</p> Signup and view all the answers

    What characterizes the burden of urinary tract infections according to the text?

    <p>High economic cost and significant public health concern</p> Signup and view all the answers

    Which of the following factors was NOT associated with an increased risk of urinary tract infections according to a study mentioned in the text?

    <p>Consumption of citrus fruits</p> Signup and view all the answers

    In terms of epidemiology, what is emphasized in relation to urinary tract infections?

    <p>Prevalence varying across different populations</p> Signup and view all the answers

    What is a primary limitation of urine dipstick testing mentioned in the text?

    <p>Inability to detect specific pathogens</p> Signup and view all the answers

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