Enterobacterales and Related Gram-Negative Bacilli

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Questions and Answers

What is the most appropriate initial treatment for gastroenteritis caused by E. coli?

  • Gentamicin
  • Piperacillin-tazobactam
  • Ciprofloxacin
  • Amoxicillin (correct)

Which antibiotic is Proteus mirabilis resistant to, and thus should not be used for treatment?

  • Co-trimoxazole
  • Nitrofurantoin (correct)
  • Ciprofloxacin
  • Amoxicillin-clavulanate

Which characteristic appearance does Proteus mirabilis show on blood agar?

  • Mucoid lactose fermenting pink colonies
  • Swarming appearance (correct)
  • Non-lactose fermenting colonies
  • Fishy smell

Infections caused by Klebsiella spp. may be resistant to which type of antibiotic?

<p>Beta-lactams (B)</p> Signup and view all the answers

What type of infections is Pseudomonas aeruginosa commonly associated with?

<p>Hospital-acquired infections (C)</p> Signup and view all the answers

Which organism is the most common cause of urinary tract infection (UTI) in both community and hospital settings?

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

What is the medical term for stones in the urinary tract?

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

What type of sample is a 'tracheal aspirate'?

<p>Aspirated respiratory sample from an intubated patient (D)</p> Signup and view all the answers

What does ESBL stand for in the context of antibiotic resistance?

<p>Extended-spectrum beta lactamase (D)</p> Signup and view all the answers

Which of the following is NOT considered a part of the normal intestinal flora?

<p>Salmonella spp. (D)</p> Signup and view all the answers

What is the habitat of Enterobacterales?

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

Which of the following is a common cause of intra-abdominal, urinary, respiratory tract, and blood stream infections?

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

What type of infections is E. coli commonly associated with?

<p>Urinary tract infections (UTI) (B)</p> Signup and view all the answers

Which method is used for further identification of gram-negative bacilli after growing on non-selective and selective media?

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

What is the most appropriate initial treatment for gastroenteritis caused by E. coli?

<p>Rehydration therapy only (B)</p> Signup and view all the answers

What type of infection may Proteus mirabilis cause in patients with functional or anatomical abnormalities?

<p>Urinary tract infections (C)</p> Signup and view all the answers

What characteristic appearance does Proteus mirabilis show on blood agar?

<p>Swarming appearance (A)</p> Signup and view all the answers

Which antibiotic resistance is Proteus mirabilis known for?

<p>Resistant to nitrofurantoin (C)</p> Signup and view all the answers

Which type of infection is Pseudomonas aeruginosa commonly associated with?

<p>Respiratory tract infection (D)</p> Signup and view all the answers

What are Klebsiella spp. NOT associated with?

<p>Gastroenteritis/diarrhoeal disease (B)</p> Signup and view all the answers

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