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Micro > Micro Cont > Flashcards

Micro Cont Flashcards

1
Q

Reduced intracellular catalase per oxidase

A

INH resistance

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2
Q

Ethambutol resistance

A

⬆️arabinosyl transferase

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3
Q

Pyrazinamide resistance

A

Altered pyrazinamidase

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4
Q

Rifampin resistance

A

❌in gene that codes for DNA dependent RNA polymerase

For transcription and RNA elongation

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5
Q

Streptomycin

A

❌protein synthesis

❌bacteria 30s subunit

❌translation

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6
Q

L pneumophilia

A

> 50
Smokers
COPD

Facultative intracellular
Buffered charcoal yeast extract

Hot tub, airco, taps

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7
Q

C perfringens

A

Obligate anaerobic, Spore forming,Gram positive rod in soil.

Necrosis: alpha toxin/lecithinase; split host phospholipids

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8
Q

C difficle cytotoxin B

A

Actin depolymerization

Infectious diarrhea

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9
Q

Botulinum toxin

A

❌presynaptic ach release

Cranial ❌
Descending paralysis

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10
Q

HBV

A

+sense SS mRNA template

Encapsulated, partial double stranded DNA genome

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11
Q

Replication of HBV

A

Reverse transcription of template RNA to viral DNA

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12
Q

Histo of bone marrow in MAC

A

Foamy macrophages
Intracellular acid fast bacilli

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13
Q

Stains for C neoformans

A

India ink
Mucicarmine
Methanamine

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14
Q

Enterococci

A

Endocarditis: colonoscopy, Cytoscopy

Gram+ cocci
Gamma hemolytic
Catalase -
Pyrrolidonyl arylamidase +
Lancefield group D
Brow in hypertonic 6.5% n bile

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Micro (6 decks)

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