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BMSL EXAM 2 > Results For Gram Positive Cocci > Flashcards

Results For Gram Positive Cocci Flashcards

1
Q

catalase test positive result description

A

presence of bubbles

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2
Q

catalase test negative result description

A

absense of bubbles

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3
Q

what are the options for results in a Hemolysis on Blood Agar test?

A

a-hemolysis (alpha) B-hemolysis (beta) y-hemolysis (gamma)

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4
Q

what is the description of an a-hemolysis (alpha) result of a Hemolysis on Blood Agar plate?

A

greenish/brown zone around a colony

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5
Q

what is the description of an B-hemolysis (beta) result of a Hemolysis on Blood Agar plate?

A

a complete zone of clearing around a colony

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6
Q

what is the description of an y-hemolysis (gamma) result of a Hemolysis on Blood Agar plate?

A

no clearing around a colony

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7
Q

what are the options for results in a NB disc test?

A

sensitive resistant

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8
Q

what is the description of a sensitive result of a NB disc test?

A

zone of inhibition > or = to 16mm

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9
Q

what is the description of a resistant result of a NB disc test?

A

zone of inhibition < 12mm

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10
Q

what are the options for results in a Optochin P disc test?

A

Sensitive Resistant

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11
Q

what is the description of a sensitive result of an Optochin P disc test?

A

clear zone with no bacterial growth surrounding the disc

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12
Q

what is the description of a resistant result of an Optochin P disc test?

A

confluent growth growth of bacteria up to the disc, no zone of inhibition

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13
Q

What is the description of a positive CTA Mannitol Fermentation test?

A

pH indicator was red but, it is now yellow

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14
Q

What is the description of a negative CTA Mannitol Fermentation test?

A

pH indicator remains reddish/orange

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15
Q

What is the description of a positive CTA Mannitol Fermentation test with Gas production?

A

pH indicator was red but, it is now yellow The tube within the tube is not filled all the way with the yellow pH indicator

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16
Q

What is the description of a positive 6.5% NaCl Broth test?

A

the broth is cloudy after 48 hour incubation

17
Q

What is the description of a negative 6.5% NaCl Broth test?

A

the broth is clear after 48 hour incubation

18
Q

What is the description of a positive coagulase test?

A

solid clot at the bottom of the tube

19
Q

What is the description of a negative coagulase test?

A

no clot in the tube

BMSL EXAM 2 (3 decks)

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