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Fom-ma > Gram +ve > Flashcards

Gram +ve Flashcards

1
Q

What can Aerobic Gram +ve bacteria be?

A

Bacilli or cocci

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2
Q

What can Aerobic Cocci be?

A

Chains-Streptococci
Clusters-Staphylococci

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3
Q

What can aerobic Bacilli be?

A

Small or large

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4
Q

What can streptococci be?

A

A-haemolytic (partial haemolysis) blood->green
B-haemolytic (complete haemolysis) blood->clear
Non-haemolytic (no diff)

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5
Q

What can a-haemolytic streptococci be?

A

Streptococcus pneumoniae- (pneumonia/meningitis and septicaemia)
Viridans streptococci- diff species, normal oral flora, cause heart valve infection

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6
Q

What can B-haemolytic streptococci be?

A

Strep.Pyogens (Group A strep)-major pathogen-pharyngitis, necrotising fasciitis.
Strep.Agalactiae (Group B strep)-neonatal infections; meningitis or bacteraemia

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7
Q

What is Non-haemolytic streptococci?

A

Enterococcus spp. (Gut is normal commensal causes UTI or endocarditis)

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8
Q

What are the two types of Staphylococci (clusters)?

A

Coagulase +ve and -ve

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9
Q

What is coagulase +ve staphylococci?

A

Staphylococcus aureus-wound infections, sepsis

(penicillin resistant due to production of penicillinase)

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10
Q

What are coagulase negative staphylococci?

A

Staph epidermidis (device related infections)

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11
Q

What are the small aerobic bacilli?

A

Corneybacterium spp.
Listeria spp.

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12
Q

What can corneybacterium spp. be?

A

Corneybacterium diphtheriae (diphtheria)

Diphtheroids (skin colonisers)

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13
Q

What can Listeria spp be?

A

Listeria monocytogenes (gastroenteritis, sepsis)

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14
Q

What can large aerobic bacilli be?

A

Bacillus spp.

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15
Q

What can bacillus spp. be?

A

Bacillus cereus (food poisoning)
Bacillus anthracis (anthrax)

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16
Q

What can Anaerobic gram +ve be?

A

Cocci or bacilli

17
Q

What is an anaerobic cocci?

A

Anaerobic streptococci

18
Q

What is an anaerobic bacilli?

A

Clostridium spp

19
Q

What can clostridium spp cause?

A

Cl tetani (tetanus)-causes uncontrolled muscle spasm due to loss of inhibition at nmj
Cl perfringes (gas gangrene)-found in soil and normal commensal in human faeces and can contaminate food.
Cl difficle (diarrhoea)-spread via spores and is difficult to culture-can’t use antibiotic that disrupts normal gut flora

Fom-ma (2 decks)

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