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Med Micro > Gram (-) Rods > Flashcards

Gram (-) Rods Flashcards

1
Q

This Gram (-) rod is aerobic, grows on MacConkey, lactose fermenting, and tests negative for citrate, urease, and oxidase

A

E. coli

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2
Q

This Gram (-) rod is aerobic, grows on MacConkey, lactose fermenting, and citrate negative but urease positive

A

Enterobacter aerogenes

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3
Q

This Gram (-) rod is aerobic, grows on MacConkey lactose fermenting, and citrate positive and urease positive

A

Klebsiella

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4
Q

How does one distinguish between Klebsiella pneumonia and Klebsiella granulomatis?

A

K. pneumoniae: alcoholics, causes pneumonia and UTI

K. granulomatis: donovan bodies, std, granuloma inguinaie

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5
Q

This Gram (-) rod is aerobic, grows on MacConkey, is lactose non-fermenting, and oxidase positive

A

Psuedomonas aeruginosa

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6
Q

What is unique about Pseudomonas aeruginosa? What disease does it cause?

A

green colonies, grape-like smell; pulmonary, septicemia, eye and ear infections

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7
Q

This Gram (-) rod is aerobic, grows on MacConkey, is lactose non-fermenting, and oxidase negative. It is urease positive and is known for its “swarming” motility.

A

Proteus

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8
Q

What disease does proteus cause?

A

UTI, kidney stones

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9
Q

This Gram (-) rod is aerobic, grows on MacConkey, is lactose non-fermenting, and oxidase negative. It is motile, citrate positive, H2S positive, and is spread fecal-orally

A

Salmonella enterica

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10
Q

What disease does Salmonella enterica cause?

A

diarrhea, enteric fever

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11
Q

This Gram (-) rod is aerobic, grows on MacConkey, is lactose non-fermenting, and oxidase negative. It is non-motile and can be characterized by 5 F’s: food, feces, flies, fingers, and fomites

A

Shigella

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12
Q

What disease does shigella cause?

A

shigellosis - shiga toxin, fever, cramps, diarrhea, dysentery

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13
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, and is seen with patients with damaged heart valves. It can cause septic arthritis in patients

A

HACEK species

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14
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, needs X and Y factors, is oxidase positive, and is known for its satellite phenomenon

A

Haemophillus Influenzae

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15
Q

What disease does H. flu cause?

A

CAPSULE: meningitis, cellulitis, epiglottis

NO CAPSULE: otitis media, sinusitis, bronchitis, pneumonia

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16
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, but does grow on regan-lowe charcoal agar. It is important to use dacron swabs with this bacterium. It spreads through aerosol transmission.

A

Bordatella pertussis

17
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is found in ticks, is slow growing, and cross reacts with Brucella. It is considered a bioterrorism bacterium.

A

Francisella tularenis

18
Q

What disease does Francisella tularenis cause?

A

TULAREMIA: ulceroglandular, oculoglandular, pneumonia

19
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, and comes from unpasteurized milk and cheese. It is considered a bioterrorism bacterium.

A

Brucella

20
Q

What disease does Brucella cause?

A

Brucellosis (undulant fever) - lives and replicates in macrophages

21
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is clean waterborne, survives in macrophages, and grows on BYCE agar with cysteine

A

Legionella pneumophillia

22
Q

What disease does Legionella pneumophillia cause?

A

legonnaires disease (pneumonia); pontiac fever (flu-like)

23
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is considered a zoonotic disease and found in fleas

A

Yersinia pestis

24
Q

What disease does Yersnia pestis cause?

A

bubonic plague

25
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is considered a zoonotic disease and found in rats

A

Streptobacillus moniliformis

26
Q

What disease does streptobacillus moniliformis cause?

A

rate bite fever

27
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is considered a zoonotic disease and found in cats

A

Bartonella henselae

28
Q

What disease does Bartonella henselae cause?

A

cat scratch fever, bacilliary angiomatosis -> skin lesions in IC people

29
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is considered a zoonotic disease and found in lice

A

Bartonella quintana

30
Q

What disease does Bartonella quintana cause?

A

trench fever - fever, pain in long bones

31
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is considered a zoonotic disease and found in sand flies

A

Bartonella bacilliformis

32
Q

What disease does bartonella bacilliformis cause?

A

carrion’s disease - rbcs are attacked -> anemia, muscle and joint pain

33
Q

This Gram (-) rod is aerobic, doesn’t grow on MacConkey, is considered a zoonotic disease and found in domestic pets

A

Pasturella multocida

34
Q

What disease does pasutrella multocida cause?

A

local cellulitis

35
Q

These two Gram (-) rod are anaerobic

A

Bacteroids - intrabdominal abscess

Fuschiobacterium

Med Micro (25 decks)

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