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BACTERIOLOGY > Important differential Test > Flashcards

Important differential Test Flashcards

1
Q

Differential test positive and negative for Catalase test

A

Staphylococcus (+)
Streptococcus (-)

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2
Q

Differential test positive and negative for Novobiocin Susceptibility

A

S. epidermidis (Sensitive)
S. saprophyticus (Resistant)

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3
Q

Differential test positive and negative for Oxidase

A

Micrococcus (+)
Staphylococcus (-)

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4
Q

Differential test positive and negative for Oxidase (2)

for rod shaped

A

(+) Vibrio, Non-fermentative (Pseudomonas)
(-) Enterobacteriaceae

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5
Q

Differential test positive and negative oxidase (3)

For bacillus

A

(+) Alcaligenes (motile)
(-) Acinetobacter (non-motile) and Stenotrophomonas (motile)

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6
Q

Differential test positive and negative bile solubility test, neufel-quellung

A

(+) S. pneumoniae
(-) Viridans streptococci

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7
Q

Differential test positive and negative camp test

A

(+) S. agalactiae
(-) Beta hemolytic streptococci

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8
Q

Differential test positive and negative salt tolerance test

A

(+) Enterococcus
(-) Non-enterococcus

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9
Q

Differential test positive and negative lysozyme sensitivity

A

(+) Streptomyces
(-) Nocardia

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10
Q

Differential test positive and negative nitrate reduction

A

(+) M. fortuitum
(-) M. chelonei

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11
Q

Differential test positive and negative Niacin

A

(+) M. tuberculosis
(-) M. bovis

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12
Q

Differential test positive and negative acetate utilization

A

(+) E. coli
(-) Shigella

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13
Q

Differential test positive and negative indole (1)

A

(+) K. oxytoca
(-) K. pneumoniae

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14
Q

Differential test positive and negative indole (2)

A

(+) P. vulgaris (OX 2, 19)
(-) P. mirabilis

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15
Q

Differential test positive and negative for lysine decarboxylation

A

(+) Salmonella (NLF)
(-) Citrobacter (LF)

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16
Q

Differential test positive and negative 42 deg C growth

A

(+) P. aeruginosa
(-) P. fluorescens

17
Q

Differential test positive and negative 42 deg C growth, Indoxyl acetate

A

(+) C. jejuni
(-) H. pylori

18
Q

Differential test positive and negative Urease (1)

A

(+) B. bronchiseptica
(-) A. faecalis

19
Q

Differential test positive and negative urease (2)

A

(+) H. pylori
(-) C. jejuni

20
Q

Differential test positive and negative urease (3)

A

(+) C. ulcerans, C. pseudotuberculosis
(-) C. diphtheriae

21
Q

Differential test positive and negative Sorbitol MAC and MUG test

A

(+) all strains of E. coli except
(-) E. coli O157:H7

22
Q

Differential test positive and negative Malonate utilization test

A

(+) Salmonella (arizona) subgroup 2 and 3
(-) The rest of Salmonella

23
Q

Differential test positive and negative Mannitol fermentation

A

(+) other Shigella (boydii, flexneri, sonnei)
(-) S. dysenteriae

24
Q

Differential test positive and negative casein hydrolysis

A

(+) Nocardia brasiliensis
(-) Nocardia asteroides

25
Q

Differential test positive and negative DNAse (1)

A

(+) Serratia spp
(-) Cedecea spp

26
Q

Differential test positive and negative DNAase (2)

A

(+) Aeromonas
(-) Plesiomonas

27
Q

Differential test positive and negative Oxidase

A

(+) Aeromonas
(-) Y. enterocolitica

28
Q

Differential test positive and negative string test

A

(+) Vibrio
(-) Aeromonas

29
Q

Differential test positive and negative motility

A

(+) Burkholderia cepacia (oxidase+)
(-) Chryseobacterium (oxidase+)

30
Q

Differential test positive and negative beta hemolysis

A

(+) Kingella kingae
(-) Eikenella corrodens

31
Q

Differential test positive and negative motility and beta hemolysis

A

(+) B. cereus
(-) B. anthracis

32
Q

Differential test positive and negative T2H susceptibility (Thiophene)

A

(+) M. tuberculosis (sensitive)
(-) All other mycobacterium

33
Q

Differential test positive and negative rice medium

A

(+) Microsporum canis
(-) M. audoinii

34
Q

Differential test positive and negative hair baiting test

A

(+) T. mentagrophytes (V-shape)
(-) T. rubrum

35
Q

Differential test positive and negative germ tube

A

(+) C. albicans and C. dubliniensis (no constriction)
(-) C. tropicalis

36
Q

Differential test positive and negative 42 deg C growth

A

(+) C. albicans
(-) C. dubliniensis

BACTERIOLOGY (49 decks)

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