Gram staining Flashcards

1
Q

gram positive bacilli

A

Bacillus anthracis

Bacillus cereus

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2
Q

Catalase test

A

3% hydrogen perioxide-bubbles

Staph or Step?

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3
Q

Catalase positive

A

Staphylococcus spp.

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4
Q

Catalase negative

A

Streptococcus species

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5
Q

Coagulase test

A

clot formation

Staph A. or nonpathogenic Staph?

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6
Q

Coagulase positive

A

Staphylococcus aureus

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7
Q

Coagulase negative

A

Staphylococcus spp.

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8
Q

Oxidase Test

A

color change: purple

E. Coli or Pseudomonas?

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9
Q

Oxidase positive

A

Pseudomonas aeuriginosa

Escherichia coli

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10
Q

Streptococcus spp.

A

gram positive cocci-catalase negative

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11
Q

Staphylococcus epidermis

A

gram positive cocci-catalase positive-coagulase negative

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12
Q

Staphylococcus aureus

A

golden staph

gram positive cocci-catalase positive-coagulase positive

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13
Q

Pseudomonus aeurginosa

A

gram negative bacilli-oxidase positive

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14
Q

Escherichia coli

A

gram negative bacilli-oxidase negative

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