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Enterobacteriaceae t
Study for Enteribacteriaceae test
Question | Answer |
---|---|
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. |