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Non-Fermentative Gram-Negative Bacilli
  • MAHATHIR ALPHA

  • 問題数 92 • 12/14/2023

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    問題一覧

  • 1

    It is used to differentiate Enterobacteriaceae from Pseudomonas

    Oxidative-fermentative test

  • 2

    -Opportunistics pathogens commonly found in water, soil, plants, vegetables, food,and hospital surfaces -Can withstand treatments of chlorhexidine and quaternary ammonium compounds -Isolated from nebulizers, dialysate fluids, salines, catheters and hospital devices

    Non-fermentative Gram-negative Bacilli

  • 3

    -Ferment carbohydrates by oxidative methods -Acid production is absent in oxidative-fermentative (OF) media if it is overlaid with mineral oil.

    Non-fermentative Gram-negative Bacillli

  • 4

    Most species of Non-fermentative Bacilli secretes what?

    Oxidase

  • 5

    What is the oxygen barrier in Oxidative- Fermentative test?

    Mineral oil

  • 6

    What is the Ph indicator for Oxidative- Fermentative test?

    Andrade's acid fuchsin

  • 7

    What is the medium used in Oxidative- Fermentative test?

    Hugh and Leifson medium with 1% carbohydrate and bromthymol blue

  • 8

    In what media does Pseudomonas normally grow?

    Primary media like MAC and BAP

  • 9

    Biochemical test and results for Pseudomonas

    Oxidase(+) Catalase (+) Non-Lactose fermenters

  • 10

    TSIA reaction of Pseudomonas

    K/K, (-) gas, (-) H2S

  • 11

    What are under the Pseudomonas non-fluorescent group?

    Pseudomonas stutzeri Pseudomonas pseudoalcaligenes

  • 12

    What are under the Pseudomonas fluorescent group?

    Pseudomonas aeruginosa Pseudomonas fluorescens Pseudomonas putida Pseudomonas veronii Pseudomonas monteilii Pseudomonas mosselii

  • 13

    -Most commonly isolated species in clinical specimens -Most commonly encountered Gram-negative bacterium that is not a member of the Enterobacteriaceae

    Pseudomonas aeruginosa

  • 14

    BAP – have spreading growth, flat, metallic sheen, have a blue-green or red brown color; grape-like or corn tortilla odor

    Pseudomonas aeruginosa

  • 15

    It is one of the most common causes of Gram-negative bacillary bacteremia.

    Pseudomonas aeruginosa

  • 16

    Etiologic agent of lung infection in cystic fibrosis patients. And It causes hospital-acquired infection that are related to antibiotic resistance

    Pseudomonas aeruginosa

  • 17

    One of the most common causes of Gram-negative bacillary bacteremia. And the causative agent of ecthyma gangrenosum, swimmer’s ear, and Jacuzzi syndrome (necrotizing skin rash)

    Pseudomonas aeruginosa

  • 18

    What are the pigments that are produced by Pseudomonas aeruginosa?

    Pyoverdin Pyocyanin Pyorubin Pyomelanin

  • 19

    Yellow-green or yellow brown pigment

    Pyoverdin

  • 20

    Blue pigment

    Pyocyanin

  • 21

    Red pigment

    Pyorubin

  • 22

    Brown or Black pigment

    Pyomelanin

  • 23

    READ!!! DISTINGUISHING CHARACTERISTICS OF Pseudomonas aeruginosa a. (+) growth at 42 deg.cent b. (+) acetamide and citrate utilization both reactions produce blue color c. (+) gluconate production d. (+) arginine dihydrolase (ADH)

    .

  • 24

    They are isolated from blood products, cosmetics, hospital equipment, urine, and respiratory specimens

    Pseudomonas putida and Pseudomonas fluorescens

  • 25

    They have been linked to transfusion- associated septicaemia

    Pseudomonas fluorescens and Pseudomonas putida

  • 26

    What is the differential test of Pseudomonas fluorescens and Pseudomonas putida?

    Gelatin hydrolysis (+) Pseudomonas fluorescens

  • 27

    What are the specimens used for the Laboratory Diagnosis of Pseudomonas?

    Blood Wound discharge Sputum Sterile fluids

  • 28

    What are the laboratory diagnosis for Pseudomonas?

    Gram stain Culture Biochemical test Phage typing

  • 29

    It allows the identification of bacteria by testing their vulnerability to bacterial viruses (bacteriophage)

    Phage typing

  • 30

    They have yellow green or yellow brown colonies

    Pseudomonas fluorescens

  • 31

    What are the culture media utilized in laboratory diagnosis of Pseudomonas?

    BAP MAC Sellers medium Cetrimide agar

  • 32

    This media promotes pigment production

    Sellers medium

  • 33

    TSIA reaction for Pseudomonas species

    K/N or K/K

  • 34

    Acinetobacter belongs to what family?

    Moraxellaceae

  • 35

    They are the second most commonly isolated non-fermentative, Gram-negative bacillus and Isolated from hospital equipment ( catheters and humidifiers).

    Acinetobacter

  • 36

    They are plump, Gram-negative coccobacilli appears in pairs under the microscope

    Acinetobacter

  • 37

    Describe the appearance of Acinetobacter in MAC

    Exhibits purple color

  • 38

    Biochemical test and result for Acinetobacter

    Catalase(+) Oxidase(-)

  • 39

    What are the related infections with Acinetobacter?

    UTI Pneumonia Endocarditis Meningitis Cellulitis

  • 40

    What are the species of the genus Acinetobacter?

    Acinobacter baumannii Acinobacter iwoffii Acinetobacter haemolyticus

  • 41

    Glucose-oxidizing, non-haemolytic strains

    Acinetobacter baumannii

  • 42

    Non- glucose-oxidizing, non-haemolytic strains

    Acinetobacter lwoffii

  • 43

    non-glucose-oxidizing, haemolytic strains

    Acinetobacter haemolyticus

  • 44

    -Third most commonly isolated non-fermentative, Gram-negative bacillus -Can contaminate blood-drawing equipment and disinfectants

    Stenotrophomonas maltophilia

  • 45

    Greek word malthum means

    Malt

  • 46

    Greek word philia means

    Affinity

  • 47

    Acid production of Stenotrophomonas maltophilia is from?

    Maltose

  • 48

    You viewed the microscope and you saw a Short to medium sized Gram-negative straight rods

    Stenotrophomonas maltophilia

  • 49

    What are used in the culture of Stenotrophomonas matrophilia?

    BAP MAC

  • 50

    Describe Stenotrophomonas maltophilia in MAC

    Exhibits blue color

  • 51

    You are observing the BAP and you saw a colony exhibit lavender-green to light purple pigmentation and an odor similar to that of ammonia

    Stenotrophomonas maltophilia

  • 52

    They are generally non-pathogenic and are acquired through contact with heavily contaminated medical devices

    Burkholderia

  • 53

    Where does Burkholderia grows well on?

    BAP MAC CAP

  • 54

    What are the species of Burkholderia?

    Burkholderia cepacia Burholderia mallei Burkholderia pseudomallei Burkholderia gladioli

  • 55

    They are isolated from anesthetics, nebulizers, detergents, and disinfectants

    Burkholderia cepacia

  • 56

    What are the Biochemical test for Burkholderia cepacia?

    Weakly positive oxidase reaction LPG(+) ONPG(+)

  • 57

    What are the related infection with Burkholderia cepacia?

    Pneumonia in patients with cystic fibrosis

  • 58

    It is a potential bioterrorism agent

    Burkholderia mallei Burkholderia pseudomallei

  • 59

    Agent of glanders or farcy disease, a severe infection that affects horses and donkeys

    Burkholderia mallei

  • 60

    What is the biochemical test for Burkholderia mallei?

    Oxidase production is variable

  • 61

    Agent of melioidosis, which is a glanders-like disease

    Burkholderia pseudomallei

  • 62

    -Motile with polar tuft of flagella -Isolated from muddy soil and rice paddies

    Burkholderia pseudomallei

  • 63

    Describe the flagella of Burkholderia pseudomallei

    Motile with polar tuft of flagella

  • 64

    What is the mode of acquisition of Burkholderia pseudomallei?

    By inhalation of contaminated debris or direct inoculation through damaged skin or mucous membranes

  • 65

    What is the culture media for Burkholderia pseudomallei?

    Ashdow medium with colistin

  • 66

    Jobert was examining the BAP, and he noticed that it have a ‘fruity” odor similar to that of apple or strawberries. What is the bacteria?

    Alcaligenes faecalis

  • 67

    Also known as Morax-Axenfeld bacillus

    Moraxella lacunata

  • 68

    What are the Non-fermentative Gram-negative Bacilli?

    Pseudomonas Acinobacter Stenotrophomonas Buckholderia Alcaligenes faecalis Oligella Moraxella lacunata Chromobacterium violacium Shewanella putrefaciens

  • 69

    What are the two species Shuwenella?

    Shuwenella putrefaciens Shuwenella algae

  • 70

    Explain the significance of Exotoxin A

    It is the most important exotoxin in Pseudomonas aeruginosa, they block protein synthesis in the host cell.

  • 71

    What is the unique characteristics of Pseudomonas fluorescens and Pseudomonas putida?

    They cannot reduce nitrate to nitrogen gas

  • 72

    It is a plant pathogen which resembles Burkholderia cepacia

    Burkholderia gladioli

  • 73

    Burkholderia gladioli are found in patients with ___ and _______.

    CF CGD

  • 74

    It is recovered from the blood and tissue of immunocompromised patients, particulary CF patients who had a lung transplant

    Burkholderia gladioli

  • 75

    Describe the motility and flagella of Burkholderia gladioli

    Motile by means of one or two polar flagella

  • 76

    What are the biochemical tests and result for Burholderia gladioli?

    Catalase(+) Urease(+)

  • 77

    They have the a characteristic macroscopic appearance of wrinkled, leathery, adherent colonies that may produce a light yellow or brown pigment

    Pseudomonas stutzeri

  • 78

    What are included in the Pseudomonas non- fluorescent group?

    Pseudomonas stutzeri Pseudomonas alcaligenes Pseudomonas pseudoalcaligenes Pseudomonas mendocina Pseudomonas luteola Pseudomonas oryzihabitans

  • 79

    What are the virulence factors of Pseudomonas aeruginosa?

    Endotoxin Pili, capsule, flagella, phospholipases, type III secretion system and several exotoxin Proteases, hemolysins, lecithinase, elastase and Dnase Exotoxin A

  • 80

    Non-fermentative Gram-negative bacilli can withstand treatments of ____________ and __________________________.

    Chlorhexidine quaternary ammonium compounds

  • 81

    Non-fermentative Gram-negative bacilli can be found in?

    Water Soil Plants Vegetables Food Hospital surfaces

  • 82

    Non-fermentative Gram-negative bacilli can be isolated from what?

    Nebulizers Dialysate fluids Salines Catheters Hospital devices

  • 83

    Pseudomonas can be found in where?

    Cosmetics Swimming pools Hot tubs Inner parts of the shoes

  • 84

    Pseudomonas aeruginosa is the causitive agent of what infection/disease?

    Ecthyma gangrenosum Swimmer's ear Jacuzzi syndrome

  • 85

    Jacuzzi syndrome is also known as what?

    Necrotizing skin rash

  • 86

    Pseudomonas fluorescens and Pseudomonas putida are isolated from what?

    Blood products Cosmetics Hospital equipment Urine Respiratory specimens

  • 87

    They have been linked to transfusion-associated septicemia

    Pseudomonas fluorescens Pseudomonas putida

  • 88

    Acinetobacter is isolated from what?

    Hospital equipment ( catheters and humidifiers)

  • 89

    Burkholderia cepacia are isolated from what?

    Anesthetics Nebulizers Detergents Disinfectants

  • 90

    It is a severe infection that affects horses and donkeys

    Glanders or farcy disease

  • 91

    It is a glanders-like disease cause by Burkholderia pseudomallei

    Melioidosis

  • 92

    Burkholderia pseudomallei is isolated from where?

    Muddy soil Rice paddies