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Bacteriology Finals > Haemophilus > Flashcards

Haemophilus Flashcards

1
Q

Are both statements true?

Fastidious organisms requires nutritional supplement and need special growth requirements. Fastidious organisms are also fast growers

A

No, only 1st statement is true.
Ratio: Fastidious organisms are slow growers

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2
Q

True or false
Haemophilus spp that need X factor as growth requirement have positive results in Porphyrin test

A

False
Ratio: The haemophilus spp that will have positive results in Porphyrin test are the ones that do not need X factor for growth requirement because they already have it.

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3
Q

Drug choice for Haemophilus ducreyi

A

Erythromycin

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4
Q

Drug of choice for other haemophilus spp

A

Ceftriaxone

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5
Q

Haemophilus spp that only needs X factor as growth requirement

A

H. ducreyi

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6
Q

Haemophilus spp that do not need both factors for growth requirement

A

H. aphrophilus

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7
Q

Haemophilus spp that causes soft chancre

A

H. ducreyi

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8
Q

MOT for H. ducreyi

A

Sexual intercourse

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9
Q

causes Brazilian purpuric fever

A

H aegypticus

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10
Q

Clinical manifestations causes by Haemophilus influenzae

A

Meningitis
Epiglottitis
Bacterial tracheitis
arthritis
Septicemia
pneumonia

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11
Q

causes contagious conjunctivitis or “pink eye”

A

Haemophilus aegypticus

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12
Q

Leading cause of meningitis in children

A

Serotype B

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13
Q

Encapsulated strain usually involved in ______ infection

A

invasive

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14
Q

Nonencapsulated strain usually involved in ______ infection

A

localized

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15
Q

True or False
Nonencapsulated strains usually cause more severe type of disease than encapsulated strains

A

False

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16
Q

Painful lesion with an irregular edge

A

Chancroid

17
Q

causes bite wound infections and endocarditis

A

Haemophilus aphrophilus

18
Q

Non-hemolytic
Translucent, tannish, moist, smooth, and convex
“Mousy” or bleach-like odor in CHOC agar
Encapsulated strains are larger and mucoid

A

Haemophilus influenzae

19
Q

Done for routine identification or differentiation of Haemophilus spp.

A

SATELLITISM TEST

20
Q

True or False
All Haemophilus species are oxidase and catalse positive that can ferment carbohydrates.

A

False
H.ducreyi does not ferment carbohydrates

Bacteriology Finals (7 decks)

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