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Enterobacteriaceae t

Study for Enteribacteriaceae test

QuestionAnswer
What is the only oxidase-negative, lactose-positive organism that is H2S-positive? Citrobacter freundii
Name the oxidase-negative, lactose positive organisms that will be on the test. Citrobater freundii, Escherichia coli, and Klebsiella pneumoniae
Name the three oxidase-negative, lactose negative, organisms that are H2S-positive. Proteus mirabilis, Salmonella enteritidis, and Salmonella typhi.
Name the three organisms that are oxidase-negative, lactose-negative, H2S-negative. Shigella sonnei, Yersinia enterocolitica, Yersinia pestis
Swarming motility Proteus mirabilis
Vaccine is available. Salmonella typhi
Frequently mistaken as Fever of Unknown Origin. Salmonella enteritidis
Produces a true infection, not an intoxication. Salmonella enteritidis
What organism is restricted to areas of Australia and southest Asia Burkholderia pseudomallei
Which organism shows "bipolar staining" (resembles saftey pins)? Burkholderia pseudomallei
What oragnism causes galnders in horses? Burkholderia mallei
Which oraganism shows coccobacilli in a gram-stain? Burkholderia mallei
This oxidase positive, NLF, LDC-positive organism has intrinsic resistance to antimicrobials. Burkholderia cepacia
This oxidase positive, NLF, LDC-negative organism has intrinsic resistance to antimicrobials. Pseudomonas aeruginosa
This organism has a grape-like oder. Pseudonomas aeruginosa
This organism is opportunistic, requires a comprimised host or traumatic event and can cause respiratory infections in patients with cystic fibrosis. Pseudomonas aeruginosa
This organism has a "green" pigment to its colonies. Pseudomonas aeruginosa
Waht is the selective agar for Burholderia cepacia? PC or OFPBL
If you are flopping around in a hot tub, what organism might you be concerned about? Pseudomonas aeruginosa
What organism's infection mimics appendicitis? Yersinia enterocolitica
What organism's colonies appear as cauliflower-like on blood agar? Yersinia pestis
What organism causes the plague? Yersinia pestis
What organism is spread by flee vectors? Yersinia pestis
You see colony morphology with a dark-red bulls-eye on the selective media CIN. What is the organism? Yersinia enterocolitica
This organism is much more common in Northern Europe, Scandinavia, and Japan. Yersinia enterocolitica
This organism causes watery diarrhea and infections are related to crowding and unsanitary conditions. Shigella sonnei
What organism causes traveler's diarrhea? Enterotoxigenic E. coli (ETEC)
This organism produces a deadly bloody diarrhea often asociated with (HUS) Hemolytic Uremic Syndrome. Enterohemorrhagic E. coli (EHEC)
Why is selenite broth good for enrichment and isolation of Salmonella spp.? Sodium selenite is toxic to most Enterobacteriasceae.
What is SS agar used for? It is selective for Salmonella and Shigella.
What does HE agar show? This agar shows fermentation and H2S production.
What color is HE agar? Blue-Green
What color will a lactose fermenter appear on HE agar? Orange or salmon-colored.
Is Salmonella an H2S producer? Yes
Is Shigella an H2S producer? No
Does XLD argar show fermentation and H2S production? Yes
What color will a lactose fermenter appear on XLD? Yellow
What organism is MacConkey Sobitol selective and differential for? EHEC E.Coli O157:H7
Name a selective and differential agar for Pseudomonas aeuginosa. Centrimide agar
Will TSI show H2S production? Yes
What does a yellow butt on TSI indicate? Glucose fermentaion
What does a yellow slant on TSI indicate? Lactose or sucrose fermentation
What causes a red slant on LIA? Deamination of lysine-LDA positive
What organism might give LIA a red slant? Proteus
What color does an LIA test tube start as? Purple
What does a yellow butt on LIA indicate? Glucose fermentation
What does a purple butt on LIA indicate? Lysine decarboxilase-LDC positive
Will LIA show H2S production? Yes
What organism promotes kindey stone formation? Proteus mirabilis
What organism produces antibiotic diarrhea due to multiple drug resistance? Proteus mirabilis
What organism produces severe, often fatal pneumonia? Klebsiella pneumoniae
This organism's specimen of choice is urine (UTI) or deep cough (pneumonia)? Klebsiella pneumoniae
I am oxidase-negative, lactose-positive, H2S-positive, Indole-negative? Citrobacter freundii
I am oxidase-negative, lactose-positive, H2S-negative, indole-positive? Escherichia coli
I am oxidase-negative, lactose-posotive, H2S-negative, indole-negative, non-motile like Shigella? Klebsiella pneumoniae
I am oxidase-negative, lactose-negative, H2S-positive, indole-negative, I am not Salmonella? Proteus mirabilis
I am oxidase-negative, lactose-negative, H2S-positive, indole-negative, I am not Proteus mirabilis? Salomomella spp.
I am oxidase-negative, lactose-negative, H2S-negative, indole-negative, I am not Yersinia spp.? Shigella sonnei
I am oxidase-negative, lactose-negative, H2S-negative, indole-negative, I am not Shigella sonnei? Yersinia spp.
I am oxidase-positive, lactose-negative, indole-negative, LDC-neagative? Pseudomonas aeruginosa
I am oxidase-positive, Lactose-negative, LDC-positive? Burkholderia spp.
I colonize from feces or perineal region? E.coli
I am free living and/or live in the human gut? Klebsiella pneumoniae
I am a late lactose fermenter? Citrobacter freundii
Common clinical isolate found in manure, sewage and soil? Proteus mirabilis
Carried by several types of farm animals, reptiles, pet turtles, and fowl. Also trasmitted by contaminated food-eggs, meat, mayonnaise,etc? Salmonella enteritidis
Reservior is in human tissues; fecal contamination of food, milk, water,and is an acute systemic disease? Salmonella typhi
Humans are the only known natural host? Shigella sonnei
Carried by dogs, cats, rodents, pigs and cattle? Yersinia enterocolitica
Caried be rodents, squirrels, prairie dogs? Yersinia pestis
Grows best at 25 to 35 degrees? Yersinia pestis
Tranmitted by medical devices and solutions, cosmetics, eye care solutions and wounds-person to person? Pseudomonas spp.
Created by: 1414395397