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PoD > Gram Positive Bacteria > Flashcards

Gram Positive Bacteria Flashcards

1
Q

What are the two separations of gram positive bacteria?

A

Bacillus and cocci

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2
Q

What are bacilli split into?

A

Anaerobic and aerobic

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3
Q

Give 2 example of aerobic spore forming bacilli and what they cause

A

bacillus cereus - food poisoning

Bacillus anthraces - anthrax

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4
Q

Give 2 examples of aerobic non-spore forming bacilli

A

Listeria monocytogenes and corynebacterium diphtheriae

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5
Q

What does listeria monocytogenes cause?

A
  • Aerobic non-spore forming bacilli
  • Meningitis in neonates
  • Bacteraemia in pregnancy
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6
Q

What does corynebacterium diphtheriae cause?

A
  • aerobic non-spore forming bacilli

- Diptheria

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7
Q

Give 4 examples of anaerobic spore forming bacilli

A
  • Clostridum difficile
  • C. perfringens
  • C. botulinum
  • C. tetani
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8
Q

What does C. difficile cause?

A

Diarrhoea

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9
Q

What does C. perfringens cause?

A
  • Anaerobic spore forming bacillus
  • Found in faeces
  • Gastroenteritis (diarrhoea, vomiting)
  • Gas gangrene
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10
Q

What does C. tentani cause?

A
  • Anaerobic spore forming bacillus
  • Tetanus
  • Spams due to loss of function at NMJ
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11
Q

What does C. botulinum cause?

A
  • Anaerobic spore forming bacillus
  • Botulism
  • indigestion of contaminated food
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12
Q

What are the subgroups of cocci?

A
  • Staphylococcus
  • Streptococcus
  • Enterococci
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13
Q

What coccus demonstrates a positive coagulase test?

A

Staph. aureus

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14
Q

What cocci demonstrates a negative coagulase test?

A
  • Staph. epidermis

- Staph. saprophyticus

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15
Q

What does staph. aureus cause?

A
  • Pos coagulase test
  • Found in nose and skin
  • Can cause endocarditis, osteomyelitis, food poisoning and toxic shock
  • Cause of pneumonia
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16
Q

Staph. epidermis?

A
  • Neg coagulase test
  • Skin
  • Can infect catheters and prostheses.
17
Q

Staph. saprophyticus?

A
  • Neg coagulase test

- Cause UTI in women of child bearing age

18
Q

Sub groups of streptococci?

A

Haemolysis - partial and complete - and non-haemolvltic

19
Q

Examples of partial haemolytic strep.

A
  • Strep. pneumoniae

- Viradins strep.

20
Q

Strep. pneumoniae

A
  • Partial haem.
  • Normal flora in upper resp. tract
  • Bacterial lobar pneumonia
  • Meningitis in children and elderly
21
Q

Viradins Strep.

A
  • Partial haem.
  • Normal flora in mouth
  • Endocarditis
22
Q

Examples of complete (beta) haemolytic strep.

A
  • Group A: Strep. pyogenes

- Group B: Strep. agalactiae

23
Q

Strep. pyogenes

A
  • Beta haem.
  • Sore throats
  • Cellulitis
  • Post strep. sequelae can result in acute rheumatoid fever, acute glomerulonephritis
24
Q

Example of non-haemolytic strep.

A

Enterococcus faecalis

25
Q

Enterococcus faecalis

A
  • Non-haem
  • Gut commensal
  • UTI
26
Q

Colour of different haemolysis

A
  • Partial: Green
  • Complete: Clear
  • Non: no change

PoD (35 decks)

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