18 Questions
Which characteristic of Enterobacteriaceae is NOT mentioned in the text?
They are cytochrome oxidase positive
What is the main reason why non-fermenter gram-negative bacilli (BNF) are a relevant group?
They cause severe, fatal infections, especially in the hospital environment
Why are Gram-negative bacteria (GNB) considered a significant public health problem?
As a result of their high resistance to antibiotics
What percentage of gram-negative isolates do Enterobacteriaceae account for according to the text?
80%
Which of the following is NOT a clinically pertinent gram-negative organism mentioned in the text?
Clostridium difficile
Why are patients infected with Gram-negative bacteria often placed in the intensive care unit (ICU)?
Due to the high morbidity and mortality risk associated with GNB infections
Which two large groups are responsible for most clinical isolates of Gram-negative bacteria?
Enterobacteriaceae and non-fermenters
How do Gram-negative bacteria differ from Gram-positive bacteria in terms of antibiotic resistance?
Gram-positive bacteria are more susceptible to antibiotic resistance
Which of the following diseases can be caused by Enterobacteriaceae?
Urinary tract infections
What is a distinguishing feature of non-fermenters mentioned in the text?
They are capable of fermenting sugars
Which of the following is a characteristic of Enterobacteriaceae mentioned in the text?
Cytochrome oxidase positive
What is a notable aspect of the antimicrobial sensitivity profile of non-fermenters?
Intrinsic resistance due to specific gene mechanisms
Which microorganism is NOT considered a non-fermenter according to the text?
Klebsiella
Why are Gram-negative bacteria considered a significant public health problem?
Due to their high resistance to antibiotics
Which group of gram-negative bacteria is responsible for most clinical isolates according to the text?
Pseudomonas aeruginosa
What is one of the clinically pertinent gram-negative organisms mentioned in the text?
Escherichia coli
What is the main difference between Enterobacteriaceae and non-fermenters as mentioned in the text?
Their ability to ferment sugars
Why do patients infected with Gram-negative bacteria often require intensive care unit (ICU) admission according to the text?
Due to the need for constant monitoring and high risk of morbidity and mortality
Explore the clinical importance of Gram-negative bacteria, particularly in hospital settings like ICUs. Learn about the resistance to antibiotics and the significant risk they pose to patients. Discover the two main groups responsible for most clinical isolates.
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