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MICRO > Test Pearls > Flashcards

Test Pearls Flashcards

1
Q

Tb factor that causes granuloma formation

A

Muramyl peptide complexes with mycolic acid

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2
Q

Caseous necrosis in tb is due to what virulence factor

A

Phospholipids

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3
Q

What is the function of cord factor (trehalose 6,6 dimycolate) in TB?

A

Inhibits migration of leukocytes

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4
Q

Factor responsible for dissemination of yersinia pestis from the fles bite injection site

A

Temperature dependent coagulase

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5
Q

Adenovirus shares its receptor with

A

Coxsackie (CAR Receptor)

Coxsackie adenovirus receptor

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6
Q

Herpesviruses are classified according to grp A B C accdg to growth pattern. Which viruses are included in Grp A exhibiting the fastest growth?

A

HSV and VZV

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7
Q

Major receptor for rhinovirus

A

ICAM-1

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8
Q

Minor receptor for rhinovirus

A

LDL

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9
Q

H antibodies in histoplasmosis signify

A

Active disease

M antibdoes - past exposure or repeated skin testing

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10
Q

Laterally located spine in schistosomsa

A

S. Mansoni

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11
Q

Barely visible spine - schistosoma

A

S.japonicum

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12
Q

Barber’s pole pattern

A

Angiostrongylus cantonensis

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13
Q

Cutting plate

A

Necator

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14
Q

Cephalic ala

A

Enterobius

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15
Q

Peanut shaped eggs with bipolar plugs

A

Capillaria

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16
Q

Lemon shaped eggs with bipolar plugs

A

Trichuris

17
Q

Common blood isolate in colon ca patients

A

Strep bovis

18
Q

Most common cause of secondary bacterial pneumonia after influenza infection

A

Staph aureus

19
Q

Diphtheria toxin is obtained via

A

Lysogenic conversion

20
Q

Antigen antibidy complexes are phagocytosed more effectively in the presence of which complement component?

A

C3B

21
Q

Negri bodies are commonly seen in what area of the CNS?

A

Purkinje cells of the Cerebellum

Pyramidal cells of the hippocampus

22
Q

Class of antibiotics avoided in ricketssial infection.

What is the appropriate tx?

A

Sulfonamides

Tetracycline and chloramphenicol

MICRO (6 decks)

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