Gram Negative Bacteria. - gd luck Flashcards

1
Q

Name the four categories of Gram - bacteria.

A

Cocci, Bacilli, Curved Bacilli , cocco - bacilli

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2
Q

How can bacilli be further categorised?

A

Anaerobic, that grows on MacCartneys. Or just anaerobic.

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3
Q

How do you further categorise anaerobic bacilli that grows on MacCartneys.

A

Fermentors and Non fermentors

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4
Q

What are coliforms? What categories of gram negative bacteria are they found in?

A

They are organisms in the species Enterobacteriaceae . They are found in the lactose fermentor and non- fermentor category of anaerobic bacilli that grows on MacCartneys.

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5
Q

What different species of cocci can be determined by biochemical tests.

A

Moraxella catarrhalis
Neisseria gonnorehea
Neisseria Meningitidis

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6
Q

What can moraxella cause?

A

Respiratory tract infections - especially in those with underlying lung pathologies.

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7
Q

What can neisseria gonorrhoea cause?

A

Urertisis in males and Pelvic inflammatory disease in females.

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8
Q

are escherichia coli and klebsiella species lactose fermentors or lactose non - fermentors

A

Lactose fermentors.

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9
Q

which species lactose non - fermentor is not a coliform?

A

Pseudomona species

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10
Q

Where are pseudomonas infections found?

A

Drains, mops, sinks, can contaminate medical equipment.

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11
Q

why are pseudomonas species difficult to control?

A

They are not sensitive to many antibiotics.

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12
Q

What problems can pseudomonas cause?

A

sepsis, pneumonia, UTIS in hospital

Respiratory tract infection in cystic fibrosis

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13
Q

Name the three coliform species in lactose non- fermentors.

A

Proteus species
Shigella Species
Salmonella Species

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14
Q

What does proteus species cause?

A

UTI

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15
Q

What does Shigella Species cause?

A

Dihorea and dysentry

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16
Q

What are two bacteria within the salmonella species?

A

Salmonella enterica

Salmonella typhi

17
Q

What does salmonella enterica cause?

A

Enterocolitis - could have bloody dihorrea - can be invasive.

18
Q

What does salmonella typhi cause?

A

typhoid and constapation

19
Q

Name three species found in anaerobic bacilli that does not grow on Macartneys.

A

Bacteriodes species
Prevotella Species
porphyomonas species

20
Q

Name a bacteriodes species

and say what it causes.

A

Bacteriodes fragilis - part of normal fauna of colon but can cause intra abdominal abscess.

21
Q

Name 3 curved bacilli species.

A

campylobacter species
Vibrio species
Helicobacter pylori

22
Q

Where is campylobacter species found and what can it cause?

A

Chickens - ingested by the faecal oral route.

Causes foul smelling, bloody dihorrea.

23
Q

What does helicobacter pylori cause?

A

stomach ulcers

24
Q

Name a type of cocco-bacterial.

A

haemophilus influenza.

25
Q

What does haemophilus influenza cause?

A

respiratory tract infection

type B used to cause meningitis.

26
Q

What are two lactose fermentors, that grow on MaCarthneys, anaerobic , bacilli

A

escherichia coli

klebsiella species

27
Q

What does escherichia coli cause?

A

dihorrea and UTI

28
Q

What does klebsiella cause?

A

UTI and pneumonia