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Questions and Answers
What type of colony morphology is observed in Ashdown BAP medium?
What type of colony morphology is observed in Ashdown BAP medium?
What is a significant risk factor for infection with the organism associated with Ashdown BAP?
What is a significant risk factor for infection with the organism associated with Ashdown BAP?
Which of the following diseases is NOT associated with the organism identified in Ashdown medium?
Which of the following diseases is NOT associated with the organism identified in Ashdown medium?
How is the organism involved in the diseases associated with Ashdown transmitted?
How is the organism involved in the diseases associated with Ashdown transmitted?
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What is the metabolic characteristic of the organism in relation to glucose?
What is the metabolic characteristic of the organism in relation to glucose?
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Where is the organism commonly found in the environment?
Where is the organism commonly found in the environment?
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What type of bacteria are characterized as coccobacilli?
What type of bacteria are characterized as coccobacilli?
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Which condition is a major health concern associated with the organism observed in Ashdown BAP?
Which condition is a major health concern associated with the organism observed in Ashdown BAP?
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What characteristic does NOT correctly describe the organism isolated from Ashdown medium?
What characteristic does NOT correctly describe the organism isolated from Ashdown medium?
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Which of the following is NOT a method of laboratory identification for the organism from Ashdown medium?
Which of the following is NOT a method of laboratory identification for the organism from Ashdown medium?
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What type of organisms does B. mallei belong to?
What type of organisms does B. mallei belong to?
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Which agar is used to observe the cultural characteristics of B. mallei?
Which agar is used to observe the cultural characteristics of B. mallei?
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What is the expected result of the Triple Sugar Iron (TSI) test for B. mallei?
What is the expected result of the Triple Sugar Iron (TSI) test for B. mallei?
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Where is B. mallei commonly found in its natural habitat?
Where is B. mallei commonly found in its natural habitat?
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What is a defining characteristic of B. mallei in terms of motility?
What is a defining characteristic of B. mallei in terms of motility?
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Which group of organisms is NOT commonly associated with B. mallei?
Which group of organisms is NOT commonly associated with B. mallei?
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Which characteristic does NOT apply to B. mallei?
Which characteristic does NOT apply to B. mallei?
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Which of the following tests would most likely show a K/K result for B. mallei?
Which of the following tests would most likely show a K/K result for B. mallei?
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Which organism is specifically pathogenic for premature infants?
Which organism is specifically pathogenic for premature infants?
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What is a common association of maltophilia?
What is a common association of maltophilia?
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What type of media is reduced nitrite used for?
What type of media is reduced nitrite used for?
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Which organism is associated with nosocomial outbreaks traced to breast milk?
Which organism is associated with nosocomial outbreaks traced to breast milk?
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Which of the following is true about A. lwoffii?
Which of the following is true about A. lwoffii?
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Which organism is known to cause epidemics in nurseries?
Which organism is known to cause epidemics in nurseries?
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What is a defining characteristic of B. cepacia?
What is a defining characteristic of B. cepacia?
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What type of environment is associated with maltophilia?
What type of environment is associated with maltophilia?
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What type of infections are commonly associated with Burkholderia cepacia?
What type of infections are commonly associated with Burkholderia cepacia?
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Which characteristic does Burkholderia cepacia exhibit?
Which characteristic does Burkholderia cepacia exhibit?
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What does a positive oxidase test indicate regarding Alcaligenes faecalis?
What does a positive oxidase test indicate regarding Alcaligenes faecalis?
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What type of pigmentation is associated with Pseudomonas aeruginosa?
What type of pigmentation is associated with Pseudomonas aeruginosa?
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Which type of infections are primarily associated with Stenotrophomonas?
Which type of infections are primarily associated with Stenotrophomonas?
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What type of media shows the characteristics of Alcaligenes faecalis?
What type of media shows the characteristics of Alcaligenes faecalis?
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Which organism is characterized as asaccharolytic?
Which organism is characterized as asaccharolytic?
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What characteristic differentiates Acinetobacter from other bacteria?
What characteristic differentiates Acinetobacter from other bacteria?
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Which of the following diseases is commonly caused by Elizabethkingia meningoseptica?
Which of the following diseases is commonly caused by Elizabethkingia meningoseptica?
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What is a notable environmental habitat for Stenotrophomonas maltophilia?
What is a notable environmental habitat for Stenotrophomonas maltophilia?
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Which bacterial characteristic is indicative of Burkholderia cepacia's motility?
Which bacterial characteristic is indicative of Burkholderia cepacia's motility?
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Which organism is known for a characteristic fruity odor?
Which organism is known for a characteristic fruity odor?
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What is a common illness associated with Pseudomonas aeruginosa?
What is a common illness associated with Pseudomonas aeruginosa?
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What type of pigment does Acinetobacter produce?
What type of pigment does Acinetobacter produce?
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What is a leading cause of nosocomial respiratory tract infections?
What is a leading cause of nosocomial respiratory tract infections?
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Which type of patients are particularly at risk of developing pneumonia from Pseudomonas aeruginosa?
Which type of patients are particularly at risk of developing pneumonia from Pseudomonas aeruginosa?
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What is the mortality rate associated with infections from Pseudomonas aeruginosa in long-term care patients?
What is the mortality rate associated with infections from Pseudomonas aeruginosa in long-term care patients?
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Which antibiotic class does NOT show efficacy against Pseudomonas aeruginosa?
Which antibiotic class does NOT show efficacy against Pseudomonas aeruginosa?
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Which medium is known to differentiate between Neisseria species and Pseudomonas aeruginosa?
Which medium is known to differentiate between Neisseria species and Pseudomonas aeruginosa?
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What is a characteristic of Pseudomonas aeruginosa when grown on MacConkey Agar?
What is a characteristic of Pseudomonas aeruginosa when grown on MacConkey Agar?
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Which of these infections is generally NOT associated with Pseudomonas aeruginosa?
Which of these infections is generally NOT associated with Pseudomonas aeruginosa?
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What type of drug users are at higher risk for infections caused by Pseudomonas aeruginosa?
What type of drug users are at higher risk for infections caused by Pseudomonas aeruginosa?
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Which of these is NOT a common disease caused by Pseudomonas aeruginosa?
Which of these is NOT a common disease caused by Pseudomonas aeruginosa?
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What is a possible complication of infections with Pseudomonas aeruginosa in long-term care patients?
What is a possible complication of infections with Pseudomonas aeruginosa in long-term care patients?
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What appearance is described that resembles alligator skin?
What appearance is described that resembles alligator skin?
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Which characteristic indicates a strong metabolic process involving carbohydrates?
Which characteristic indicates a strong metabolic process involving carbohydrates?
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In terms of antibiotic resistance, what is the characteristic mentioned?
In terms of antibiotic resistance, what is the characteristic mentioned?
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What color is associated with pyocyanin production?
What color is associated with pyocyanin production?
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What is the catalase reaction result for the described organism?
What is the catalase reaction result for the described organism?
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What is indicated by a lavender/slight yellow color in biochemical testing?
What is indicated by a lavender/slight yellow color in biochemical testing?
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What is the lactose fermentation status mentioned?
What is the lactose fermentation status mentioned?
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What shape is associated with the organism's cellular structure?
What shape is associated with the organism's cellular structure?
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What biochemical characteristic does indole production signify?
What biochemical characteristic does indole production signify?
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Which feature distinguishes the organism as nonmotile?
Which feature distinguishes the organism as nonmotile?
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What does DNase positive indicate about the organism?
What does DNase positive indicate about the organism?
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What is associated with the blue color observed in certain media?
What is associated with the blue color observed in certain media?
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What does a positive lysine decarboxylase test suggest?
What does a positive lysine decarboxylase test suggest?
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What characteristic describes the odor produced by the organism?
What characteristic describes the odor produced by the organism?
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Study Notes
Bacteria Classification
- Bacteria are classified based on various factors, including motility, colony morphology, and biochemical reactions.
- Motile bacteria can move; nonmotile bacteria cannot.
- Colony morphology refers to the visual appearance of bacterial colonies on agar plates. Characteristics include color, texture, size.
- Biochemical reactions are used to identify specific bacteria. Examples include glucose fermentation, oxidase test, and others.
Bacterial Genera
- Burkholderia Some species are non-motile and have specific colony colors/shapes. Others are motile and have specific colony colors/shapes.
- Alcaligenes faecalis is a category of bacteria and is found in water.
- Pseudomonas include aeruginosa which can be found in hospital environments and often exhibit antimicrobial resistance. This species, among others, causes nosocomial respiratory infections. aeruginosa can have various colony colors.
- Acinetobacter is sometimes a normal flora (common in the body), often found in hospital environments. They exhibit different colony shapes on different cultures.
- Elizabethkingia meningoseptica is found in water systems/hospital equipment and associated with neonatal meningitis (infants).
- Stenotrophomonas maltophilia is found in the environment or respiratory tracts of long-term care patients. It has connections to pneumonia, endocarditis, and other diseases.
- A. calcoaceticus-baumannii complex is resistant to penicillin.
- A. Iwoffii has other resistance attributes.
Bacterial Identification and Culture Methods
- Bacterial culture involves growing bacteria on agar plates to observe their characteristics.
- BAP (Blood Agar Plate) and MAC (MacConkey Agar) are common culture mediums.
Diseases and Transmission
- Certain bacteria can transmit disease either through direct contact or aerosols.
- Bacterial infections can cause various diseases, including endocarditis, UTIs, dermatitis, wounds, pneumonia, and septicemia.
- Certain species are linked to specific diseases; and cause infections in specific patient groups (eg. cystic fibrosis patients)
Other Relevant Data
- Characteristics like oxidase, catalase, and carbohydrate fermentation tests are crucial in separating these bacterial types.
- Many bacteria have specific habitats; indicating potential locations and origin/entry points.
- Some bacterial infections have high mortality rates.
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Description
Test your knowledge on the classification of bacteria, focusing on motility, colony morphology, and biochemical reactions. This quiz covers various bacterial genera, their characteristics, and their significance in different environments.
